With my reality-nazi cap on, I'd say that the beak on top left is a bit too big (or lacks a stop)(*), while on the top right it would have been borrowed from a big linnet. In my birds guide book, they would have use these drawings to illustrate the difference between the two species 
Otherwise, very good rendering of the feathers (and I reckon the black-on-black isn't easy to achieve), lively eyes, nice backdrops and very pleasant picture overall.
(*) but likely how the bird should look in GoT and other fantasy series
Otherwise, very good rendering of the feathers (and I reckon the black-on-black isn't easy to achieve), lively eyes, nice backdrops and very pleasant picture overall.
(*) but likely how the bird should look in GoT and other fantasy series