Alot of the faces look incredibly with distance between the jaw to the temple being inches apart, some of the fingers look really long in some of the pictures too, the noses are almost just as big as the heads are long, the body proportions look kinda crazy, waist line is just like a small circle and then the thighs look kinda big for a lanky form. Alot of the picks look as if they were done with simpler shapes.
I don't wish for you to give up in drawing but to press on and get better in time.