Not that I know, same with other traits which give specific style such are genius, evil, neurotic and computer whiz (can't remember if any other trait make a change). Some claimed that painting outdoor will give you clear paintings, but my artistic Sim made them everywhere, so that didn't work for me. Also, some claimed that stir crazy moodlet makes paintings blurry, but not the case in my game. My painter is almost always elated with tons of positive moodlets and it still randomly spawn some of those blurry paintings.
As for why artistic Sim is making blurry paintings, well, several famous artists made those blurry incomprehensible paintings and it is now kind of stereotypical that talented painters do that. It just adds to diversity in game.