A++ texture, colouring and details, with the exception of the cracks, which, as ControlAll says, don't look quite right. The eye scar seems feasible, but it kind of looks like it was just painted on top of the skin instead of going into it. You'd be very hard pressed to find any horns cracking like that, though; i'd imagine it more to be a single thin and jagged line which forks maybe once. SUPER QUICK EXAMPLE.

The eyeball itself seems oddly non-spherical, and kind of seems to be floating in the middle of the socket, fixated on a thick "stalk". This does not a good eyesight make, especially not for a predator that probably relies a lot on it. :v

Overall though, pretty damn good!

Slightly jagged outlines on the window reflection, but otherwise superb.

That is a WEIRD bend on that tail. Again, texture and colouring is really good, but the spikes on the back seem rather haphazardly placed, and it seems a bit odd to me that they're that smoothly embedded in the body. Also, the wings need some proper anatomy m8, since dragon wings are typically modelled after bat wings, which are basically long arms with SUPER long fingers that have a membrane stretched out between them. Wikipedia provides a nice reference so i won't have to. :v (and apparently this bat didn't skip arm day)
Of course, you don't have to make it exactly like reality, but mind that all classic mythical creatures are based on real ones in at least some way.

Painted from a photo? Looks very life-like for the time spent. Feather detail is excellent, beak seems a bit too smudgy, especially around the inside of the mouth. Pretty fuckin' good, though!