I just have to say, I REALLY love these images! Especially the ones about Aquilla! And since I can barely draw a straight line, I may or may not be a little jealous of your talent.
I have an idea for a possible future Avian character you might consider trying to draw (or not, it's up to you). His name would be Iclyn, and he would be modeled after the white Gyrfalcon, the largest of all the falcon species. Since Gyrfalcons are often found in sub-arctic climates, he could be an avian with ice abilities.
I also have a question: In the caption of several of your avian pictures, you mention the phrase 'my story', is this story available to read, because I SERIOUSLY want to read it!