Okay update time - the head mesh is now looking a lot better without all those unsightly bulges on the previous attempt. The only problem now is that this is the manliest looking girl I've ever modelled.
Anyway, I'm going to complete the head then figure out where I'm going with this - do I girlify the head up a bit or do I swear blind that I've always wanted to make a fella and turn him/her into a satyr?