Good capture considering how difficult it is to catch crows & ravens on the camera! Like the wing detail showing the end "fringes". The contrast with the pale background does not allow to see much detail but this is part of the difficulties when shooting black animals. On the other hand, it makes a wonderful silhouette. Keep on trying...
I like the stark black on white (good negative space ;-)
I would not have put the bird in the center of this composition but that's my anti-subject center bias coming out... some people may not mind!