>>46298487Don't worry too much about getting the headshape right, you can hide most of it with hair and no one will ever see it.
I would say the jawbone is far too long. If you follow a reference pic for the profile don't copy it 1:1. I tried to mark how I would do the jaw.
You don't have to model a complete eyeball an empty socked with a floating circle is probably easier to work with, if you bend the circle a bit they look like they follow the viewer from different angles.
I also think that you can easily delete a few of the loops around your eyes, no need to have a million vertices there.
Same goes for your mouth.
Did you try messing around with some sculpt tools? You can easily fix the general shape of your head with tools like smooth, inflate, grab and elastic deform.