[A] Cyclops

[Helen]

Your hair lines suggested a greater degree of turning of the head than is drawn. His right side hair line, not your right...should be further back.

Notice how a face should be round , with rounded edges. observe how the hair line in that spot flattens out the face there. It sound be angled further back , to give a correct sense of the facing being rounded.

The drawing suggest that the top of his head is able to be screwed off or around and has been turned off the axis of the rest of the face.

The rest is pretty damn good.