Digital art noob looking for critiques!

[lilith-lion]

Hi everyone! I just joined this forum! I have been having a hard time finding active art forums, but this one looks like it has quite a bit of activity!

I was wondering if anyone could critique this latest painting I did! I am very new to digital painting (really just started a few weeks ago). I have done sketching and cell-shaded pieces, but never painting. I'm not going for full realism, think Blizzard games promo art or something like that.This is my best attempt! I know of some issues, like the meh background and the light too strong on her hands. This was the first time I've ever done anything with a background, so critiques on composition would be lovely!

Any constructive criticism would be wonderful! I really want to improve.
(Apologies if the attached image is too big, I kind struggled with attaching the thing)