>>5242327not considering how things overlap or not spending any time seriously trying to study overlapping forms because "lol i know how things overlapping works, you just put one in front of the other, i'll do boxes instead"
there's a reason vilppu puts the spherical overlapping forms before any other form and there's a reason he calls it deceptively simple and insists that you practice it until you master it, it's the key to 3D drawing and if you think you've got it down then you probably don't yet
