I know they're coming coming from a positive place, but I can't help but get annoyed at the "you just gotta keep trying, look you get better! *follows with examples*" genre of art post, because invariably the examples start from a place that is already beyond the abilities of most.
It would be like me saying, "You get better!" and following with my work in Calculus 2, then my work in Mathematical Analysis. It's like...yes, the second is better, but most aspirants still don't know what's going on with the first one, so these examples aren't exactly helpful for motivation, and may in some cases be actively detrimental as it seems to carry with it the implication that the "floor" of skill is already beyond you.