A while ago, I heard someone describing what they liked in art on FA. "This picture is good. It has no lines, it has indirect lighting..." going on in a funny way to describe digital painting. It amused me enough to remember it. Anyway, such images always impress me because it's something I don't have the ability to pull off with a satisfactory level of confidence or ability.

Check out the work of  nazerine for someone with this skill, who also produces cute characters. They're fairly new to FA so their main gallery is a little small, but their scraps gallery has many more submissions, so be sure to browse that for more samples of this person's impressive abilities.