There is alot of learning still to be done,
don't give up ever! it is much better than your first attempt bro. you learn as you make mistakes and the more you model, the better and more efficient you'll become. I proud of you for not giving up.
Work on the eyes, brow and cheeks more too...
as for almost every character it gives it a unique personality. the Eyes are "windows to the soul"
from there you can make any character look wimpy, confident, evil, good... blah... you name it.
Coming along well!