Just to give you a heads up,please have at least four words per post.
Anywho,I guess i'll be the only one to give a decent rating. To be frank,they're pretty bad.
On the first one the wing and tail are not shaded properly. There is no outline period in some spots such as the tail,also the outline is black. >< Black outlines=bad. Just color the outline a darker color of the color you're using. Plus,the fusing with the head is very...un-clean to say the least. It's roughly attached and makes the fusion look like the head is part of the chest.
The others are pretty much poorly shaded and outlines. As I said,don't outline in black,it makes the sprite look bad and n00bish. Just practice outlining and shading in paint or something and you should improve,I know I did. As corny as it may sound,practice does make perfect.
I hope I helped you,good luck!