/ic/ - Artwork/Critique

Btw, should I use references everytime I am trying to draw an head from now on? Everytime I try to draw from imagination the heads are either generic as shit or just shit, and when I try construction it takes 10 minutes just for one head. Should I just study real heads before drawing anime ones? I don't know if it is the size I draw in but even when I try to measure the size of the eyes it always end up wrong. Have been thinking about starting drawing more when I get my screen tablet because traditional is pretty hard and everytime I flip them after it's done they look worse.

Currently struggling with faces but I am trying to fix it studying more anime art styles and the human skull