face is too small, too low on the head, and his entire body is too wide. these have been long-standing problems. his wrists are far too thin, as are his hands. waist armor looks good, except for the back skirt. don't like the shape at all... I think it would look better split vertically like you did the front.
The sword on the leading edge of the wing idea is pretty cool. Though being a more practical minded person I would have attached the swords on the back between the wings running parallel vertically. But the setup in your design should make for some interesting motions when drawing/sheathing the sword where he would bring…