Repetitive
I really love this show, and I can watch it over and over. But I have to admit the paintings get rather repetitive after awhile. I mean it's always a sky, some trees, some grass, and maybe a mountain and/or some water. If he really wants to change things up, he'll throw a cabin in. But really, that's all he ever does. Bob is still awesome though!
I suppose it's amazing that he gets the variety that he does using just those same elements all of the time.