Hey Nonso, these are really strong. You have good proportions, and a good idea of what kind of style you want to go for. What I would say is it seems like you're jumping into the details before figuring out the structure of the head that you're drawing. As a result, some of shapes end up looking a little wonky, and the value is all over the place. I think if you spent some time really thinking about the shadow shapes you were putting down, it would have a positive effect on your drawings. I've included some of @Erik Gist's drawing as examples: Hope this helps and good luck! -Kristian

I like that you are not afraid of dark values and I think the plane distinction is well done like 4th girl 1st image or big face in 3rd image. The proportions and symmetry is a little wonky. Maybe you could try to draw a center line for the face in the early stages. That also helps establish the form when working with extreme angles like 2nd face 1st image. You can also try to draw a bounding box for the face to make sure you know where the perspective lines are going rather than just trying to establish proportions from observation.

Wow! Nice work mate. I especially like the girl on the left in the first picture. I love that style of rendering. Keep up the good work! :)