1. Have your images gathered in one place, if you want to paint them later in your game (always choose those with the highest resolution)
2. Photo Edit-Software like Photoshop, Gimp, or Paint.net (check below for more info on that)
3. Sims4Studio-Software Link
4. TS4 & TS4 Legacy Edition (free to download via Origin if you own TS4 already)
5. Two Mods, one that will improve the quality of your images the other to make it work! Set filters on paintings by reference and XML Injector" both are by Scumbumbo
6. Some time and a bit of patience, Simmer.

Keep in mind you don't need Photoshop in order to create your own art! Make sure to follow mysimsdreams' video instructions on how to install the Legacy Edition

1. You download existing CC and paint those for the upload
2. You're using Sims 4 Studio download here and create your own art with pictures/images from Google. A very useful and easy tutorial did TheSimSupply simply check his youtube tutorial here

1. Remove all existing mods
2. Create a new save file with a new random Sim (make sure it doesn't have needy traits I used "Creative, Loner, Cheerful) who will be your painter! After that, I named my save file "ArtGallery" Now exit The Game! Pronto! LOL
3. Add now the art (.package files) of your desire into the mods folder
4. Open the new save file "ArtGallery" (I went to Newcrest)
5. Use two empty adjacent lots
6. Setup of the first lot: Use the foundation tool to build a 3-tile wide foundation "place it very close to the edge of the lot near the second lot for the case to have the CC from the second lot close to you) add stairs to the foundation. Place along the whole way the most expensive easels . So since our simmies get hungry, need to pee and sleep I did build beneath a bunk where it can get all needs fulfilled
   
7. Use cheats: Open the console with Left CTRL+Shift+C (press/hold in that order) Helpful cheats for that are testingcheats on or testingcheats true motherlode & bb.ignoregameplayunlocksentitlement . Make sure to get the most expensive easels (for the highest/best quality, capeesh?
8. Now set up the second lot with your custom content art. Place your art very close to the front edge of the lot nearest to the first lot. Place them on a wall up to 3 levels with the tallest height (my suggestion). I use mostly a black/sometimes white wallpaper (depends on art) because I do frame them before upload + it looks way better later if you aren't 100 % accurate! Place your art along the wall (make sure to leave some space in between). HINT: Enlarge the art you want to paint 2 or three times but depends on the art you have - so that you can paint it from the other lot way easier and it fits within the picture when you start to paint. Be prepared sometimes you have to travel between the two lots to adjust the size of your cc art so that it fits within your painting
9. Time to travel back to the first lot . Make sure that all needs are satisfied.
10. Best time to paint is during the daytime of course between 8:00 am & 6:00 pm depending on the light effects u prefer, which of course will change during the daytime, take this into consideration Now it's time to paint by reference (or take a photograph) use the cheat stats.set_skill_level major_painting 10 or stats.set_skill_level major_photography 5

Store your artwork in the sim's inventory, but not the household inventory, as there is a bug that can cause them to go blank when stored in the household inventory.

Also, if I could offer just one tip to newer builders, especially those using bb.moveobjects, it would be to make sure to test saving your lot to the library and then placing it from there. There are a lot of bugs that don't show their heads until you do this, so you won't even know there's a problem with your lot. But your downloaders will quickly find it... I recommend doing this at several points during the building process, so you won't discover you have a lot of rework looming at the end.

• Standard Sims 4 Playthrough
  Imagine something like a fresh start or your first household you intend to experience the game with and simply capture that journey/experience of playing through the game. Though this is a loose concept since you don't necessarily play the game with some form of strict end-game goal or ending, I'd say it might potentially be a great idea for a video series
• Building Videos / Speedbuilds
  I think this is an absolute classic in regards to Sims content. Sharing your creations and designs, showcasing the outstanding craftsmanship of one of your builds or even something simple as a quick Speedbuild. These type of videos definitely go into the direction of infinite creativity, since you can do basically anything
• Tutorials / How-To-Videos
  A natural thing for any nieche of content creation. Ranging from how to install mods properly all the way to how you can build the perfect house. You can basically take any complex concept the game throws at its players and give some instruction on how to do it / how to improve on something -- it's pretty much the same idea of creative freedom here
• Collaboration Projects
  This is a huge bonus of the awesome Sims community. I'd say it's quite easy to gather some people and start creating content together, or even share work on projects you might come up with. Creating awesome videos is a great thing but if you can put the right people together -- well that can definitely enhance the experience.
• Sim Creation
  Do your Sims look better than anyone elses, did you master the editor, and can you create celebrity-lookalikes? Sim-creations are always interesting to see; especially when there is some interesting story attached to it.
• The Sims Franchise / The Sims / Sims 2 / Sims 3 / Sims 4
  Not necessarily a need to limit yourself to The Sims 4. Most of the video ideas can be done for previous titles and who doesn't like that sporadic hit of nostalgia?
• The Sims Mobile
  As much as you can create these backwards compatible videos about older titles, you might as well create videos about the Sims mobile. As far as I know there are currently two releases available on your smartphone.
• Project Rene / Sims 5
  You could see this as news coverage, speculative content, your dreams and wishes -- when it comes to Project Rene there are tons of interesting things happening and lots of points do discuss. Definitely worth to make videos about.
• Criticism and Feedback
  More of a general thing but in case you have any type of criticism or feedback towards the game, I'd say that always makes for a fantastic video.
• Sims Stories
  This is a topic I unfortunately have absolutely no clue about. Maybe you guys can comment on this and help me out. As far as I know this is simmers creating custom stories for each of their Sims and crafting these beautiful stories and events to link everything together. Through the roof creative and I assume the videos you can create with this are insanely good.
• Your Sims Origin Story
  This is pretty simple and straightforward: What got you into the Sims? How did you get in touch with it the first time -- anything goes and I know for a fact that a lot of people have very interesting stories to tell when it comes to their first interactions with this beautiful franchise.
• Content Updates / Patch Notes
  News coverage. There are frequent updates to the game, new packs being announced, and I'd say even news about Project Rene would fall into this category.
• Seasonal Event / Theme inspired Videos
  Christmas, Halloween, Seasons, Sport-Events; I don't even know. Anything that is big as in a seasonal event or even something like the World Cup (wouldn't recommend doing videos on that though).
• Content-Packs / Add-ons
  New Content-Pack released? You make the decision to purchase it? Well, why not capture your experience with it on camera and turn that into a video?
• Custom Content and Modifications
  Also something I don't really have any experience with but I'd imagine that the modding community is huge and I am very certain that you can do some crazy crazy stuff when adding a couple of Mods to the game.
• YouTube Shorts / TikTok / Instagram Content
  Had some interesting event or something crazy happen while playing but it's not worth to create a whole video about it? You might turn it into a short and upload it to your favourite platform for that type of content. You could even take videos so for example a speedbuild and turn some important pieces of it into a short.
• Livestreaming
  I am not sure if I would label this a natural progression, but I assume this is more or less a logical step once you've gathered an audience to try out livestreaming. Might be a very fresh and different experience to actually have you viewers interact with you and have a much more natural experience.