Please consider this edit

I didn't try to conserve on the palette, tell me if you think you'd like that, this image doesn't need more than 16 colors, really.
I also didn't edit it but I have to say boobs touching each other without support (and that shirt doesn't seem to provide support) are not how boobs work -- you might not care about that too much.
I like the expression, good job getting character in there.
You need to work on your human anatomy more even if you plan to abstract in an anime-ish fashion later, though.