/ic/ - Artwork/Critique

I'm in the middle of Steve Hustons course on heads, and at this point he says to get the form of the head to be as boxy as possible so the perspective is clear and that it can be rounded out later, but I feel like I'm getting something wrong every time. These ones are from imagination.

Anyone care to point it out?

On another note, they all look samey: a masculine adult. If I wanted to make a woman or a kid, how would I change it? This may get answered later in the course but I'm just really anxious for feedback.

Nothing worse than building on a mistake for a long time and having to go back and retrain yourself.