It's a good and cute start, but there are some basic flaws.
If you haven't already, you should read this tuto (and / or others like it).
Did you use a reference? If yes, link it. If not, find one (or better: several). It looks like you used one for some of it (head, legs), but not all (wings).


Then the palette needs tweaking. Study dpixel's edit, it's a big improvement in this (and others) respect.
Shading: you already have a light source, but you need more contrast to make it obvious, as well as highlights.