There are 2 things I really like about this deviation: The photorealism; The coloration (While it's good to know what Sinornithosaurus really looked like, it's unfortunate to know that it didn't look like this).
Good one. I like the way you paint integument and show lighting on it. Eye and snout are lively, and I also like the pattern on the integument. I suppose it could have been conspicuous (as you portray it), because the animal lived in trees and could escape by gliding. The out-of focus ginkgoes in the background are a nice touch. The wing part could use some more detail in my view, but no big deal.