Strangely, most of my sims have lived over 100 so far, I was actually shocked the first time one of mine died in their 90s, maybe I should keep note of the things I do for my strangely long lived sims... or maybe it's just a bridgeport thing.
I think perfectionist might help get clear paintings, mine are really clear. I also think that genius is very bad for them, genius like to paint weird pixelated painting, I think it's kinda funny.
Happy Birthday Janna!
I love your story, good luck!