All colored! I decided it needed some color on the "feathers" and red was the obvious choice. Of course, this means I need to edit the description in my novel, but that won't be difficult.
Top left: Back of wings.
Top right: Sahz without the wings to show back/saddle structure.
Bottom left: Spread wings without flight active.
Bottom right: Spread wings with flight fire between feathers. Some of the detail died, but the fire comes from between the wing feathers and out of all vents in the feathers and body, which can be seen better on the line art here: http://www.furaffinity.net/view/10248749/