The only way I know of is an in-game feature of painting 30 paintings. It does speed it up a bit. I just started my artistic sim out skilling and then when she got the option, painted small paintings only until she reached 30. That seemed to make sense but did drag on a while. However....she was managing 6 children and a hubby at times....heh....so...take from it what you will. I don't know of a mod that speeds up the process at this point but they could be out there.
ETA: If it is any comfort, by the time she reached the 30 painting goal, she was nearly finished with maxing the skill. (shrug)
Comments
ETA: If it is any comfort, by the time she reached the 30 painting goal, she was nearly finished with maxing the skill. (shrug)
Quicker Painting:
http://www.modthesims.info/download.php?t=350535
&
Canvas Valuer:
http://www.modthesims.info/download.php?t=350772
Edit: I'm too slow