Just a question, when you draw; do you draw "freestyle" or do you use the principle shapes as base? (cubes, spheres etc.) If you haven't tried the latter, I think you should. It practices your brain to percieve depth from a 2d image and after a while you learn to give depth through freestyle.
It's just a suggestion.
Regarding the coloring; I think your background got an upgrade but the shading on the character is a little bit odd, shadows on some parts but not on the other. For example, there's shadows under the cheek and arms, but not under her breasts.
I'm sorry if you don't want constructive criticism, so tell me if you don't want any.
