This is odd, because it's supposed to be a zebra finch, but I thought it was a strange Falcon at first...

First thing's first, finches have three toes pointing forward, and one pointing back. It's very rare for birds to have less than 4 toes (and ALL passerine birds have 4 toes). In addition, I recommend drawing the tail as separate feathers - as it stands, it looks as if it's just a raccoon tail or something. Most glaringly is the fact that the right wing is seemingly much smaller than the left - I understand that this is because the wing is facing me, but it looks at least half the size of the other wing.

Best thing to do is to get a clearer reference, and get a firm understanding of bird anatomy before trying more adventurous poses. Not a bad try though!

Very cute! The anatomy is pretty well drawn out, and the design is very cool. The legs get a little hard to define because you used such a bright orange on that back leg. Colors in the background tend to be more gray and muted, so changing the color of that leg and perhaps even a little bit on that back leg would add more depth to your piece overall.

But I like your simplistic background as it doesnt take away from the bird in anyway. Aside from that one leg, the colors are nice and soft. Good job! Keep up the good work!