Andrew Garfield bust sculpt (Help appreciated)

Anomaly

Hello People  

Working on my first bust sculpt of Andrew Garfield to practice Zbrush in my final year. Just wondering what people would do to push it further and also any corrections that are needed to be made.

Thanks for your time  

Jakub

I don't really see Garfield at all.

The most important thing would be anatomy. His face seems to be flat, even surface and shouldn't really work like that.

Sculpting a likeness is really another level of portrait sculpting, and getting to it without knowledge of underlying structure(skull, muscles, fat pads) will not end up well in most cases. 

Study anatomy, use reference, but do not try to get a likeness done straight away.