headshape editing

[suirad]

guys im a fellow patcher that needs tips on headshape editing. im using blender and what i want to do is create non exsistent players like glenn robinson etc. but what i want to know is how do i get the headshape to be just like his real headshape being that there is no 3d model that exsists of him till i make it. i imagine that when patchers just take an exsisting player and add a face to him thats easy cause the 3d model already exsists so no headshape editing needed. but i want to make non exsistent players so can anyone point the steps out to me in the right direction so i can accomplish my goal thanks