Minor Project: Haast's Eagle Character Refinements

I've attempted to tidy and define the Haast's Eagle shape a little more from different views. I've used shapes as a guide as suggested by Alan from my tutorials last week. I've made two versions of the character's head- number one is more 'pigeon' head shaped whereas number two is more fixed by the shape guides and more like Charley Harper's "Red Bird" character. 

Charley Harper's "Red Bird" reference