Attempting first completed head model

Interested in learning the full series of steps on modeling, I’ve completed the basic underlying model of Ben Franklin and thrown on some quick particles just to have that shape on the head, and will now be looking into cleaning it up where need be now that I’ve seen light on it, and tackling the retopology next which people seem to agree is the next logical step. Only reference I really had was a google imaged $100 bill. Definitely a learning process, for the next model I’ll illustrate full turns and try it that way, I can see now why people model that way.