I have just checked the proportions of the model. They are wrong. 
This is a quick overlay of orthographic renderings of the original CG model:
You can clearly see that the outlines do not match.
You should not start unfolding before making some changes to the mesh.
Source of the original renderings:
http://www.modelermagic.com/?p=741

This is a quick overlay of orthographic renderings of the original CG model:

You can clearly see that the outlines do not match.
You should not start unfolding before making some changes to the mesh.
Source of the original renderings:
http://www.modelermagic.com/?p=741