Nice updates! I really like this page because it's looking pretty solid, like a 3d shape.
I agree with Dose, some more confident (especially longer) lines would do your sketches good. The proportions seem okay by the way
I really like how far you've come already in such a short time.
Good luck saving up money to go to a good art school. Meanwhile, don't forget why you like to draw ^^ and maybe do some longer projects, or keep a sketchbook standing open so you keep remembering that you'd like to maybe do drawing instead of computing (but remember it's not bad to not want to draw ofcourse )
Ah well. Keep it up!