/ic/ - Artwork/Critique

Trying a foreshortened head from an exercise in Keys to Drawing, and this is obviously fucked up, even though it's not finished. I just can't put my finger on what is fucked up. I feel that it's too "long", in height.

On another point, I'm a complete beginner as you can see. While going through Keys to Drawing, I have this tendency to try and "finish" the drawings, but I don't know if this is good, bad, or doesn't matter at all. I mean, I've been working through the portrait drawings lately, and I try and finish them all the time, but they take me forever since I add shadows and shit, to try and make the angle look right.

All in all, I've been fucking around with Keys to Drawing for about 80 hours or so, and I'm only at page 95ish.