You have a talent for characters inspired by Brian Jacques. As a writer I would be honored to have someone drawing and creating art that is this great drawn from my own writing. This image really captures the menacing hawk.
The detail on this is phenomenal! I love that the longer I look at it, the more I can appreciate all the tattoos and engravings. The shades really stand out. Also, I think it was a really good idea to darken a circle around the outside of the main focal point, it really brings the eye to focus on the quality of the piece. I love this, it truly is awesome.