Composition and Lighting: Natural outdoor lighting. Yet the semi-overcast lighting makes it look a little bit flat. Nothing much to say on composition. Maybe a bit tighter crop on the bottom and right.
Technical: Think this image could have improved a lot with a bit of editing. Some more contrast, a closer crop, bit darker background, bit higher saturation and sharpness, etc.
Overall: Though this eagle shot is impressive, it seems like it is a fairly standard shot to DPC. Not able to get photos of it taking off?
I'll give you credit for obtaining what appears to be a "natural environment" eagle shot. Not so easy to get. Could be a little sharper and better detailed.