I have been uploading rooms to the Gallery containing walls of paintings that my Sim has painted in the game and photos that my Sim has taken in the game. They are all NO CC.
Just as a tip, you can check if creations contain cc or not, because only NO CC creations can appear on the online website version of the Sims 4 Gallery.
The link to my section of the Sims 4 Gallery online website version is
My user name on Origin is roseymow
I would be so very delighted if you would like to use my paintings and photos in your homes, venues or rooms!
I will post new rooms in this thread when I upload them