This is seriously beautiful, first of all. The reds REALLY pop against the pale skin, and the splash of violet in the eyes is just tremendous. Your wings are looking better too - you've fixed the haphazard feathering I noticed in Adolescent and the way the tilt of the humerus...es matches the shoulders looks great!
One thing that really stands out to me is that the character doesn't look like he belongs in the background. The background is super detailed and wonderful, and the character is rather simpler and wonderful, and never the twain shall meet. If you want to combine simple and complex like that, may I suggest art nouveau? Judging by this I think you would have a fine eye for the... restrained complexity of the frame.
Another thing I noticed was... uh... fingers don't go like that. XD Try making that pose with your hand - if you can, I might have to drive you to the emergency room. >_> Taking pictures of your own hand in the pose you want will really help that! Webcams and cellphones are great for that.
Anyway, overall I love this, it's beautiful and vibrant and AUTUMN. It just needs a few tucks here and there!
But D8 Fingers go like dat! Tobi does that all the time!
In all seriousness though, I probably could use some more hand studies and shall work on balancing detail in the future <3