Improvement?

I am working my way out of an art funk, and to find some inspiration I went through some old files.
this is Nuan-Ya, who was an old rp character for 4 Nations Academy. I was really happy when I did the second one the other day! It was just as I pictured her! Well, actually, her face is a little thin. I always wanted her to be short, round and always put together.

here's the piece on the right by itself: [link]
and I think her head was a little more round in the sketch, which you can see here: [link]

hmmm, maybe i'll try a full body shot?