Three Concentration Pieces

This picture I drew in my sketch book is what gave me the idea to do human emotion as my concentration. I don't think I am going to do anything with this particular image but this drawing is what inspired my idea for my concentration theme.

Composition:

For my composition I am going to portray human emotion through facial expressions and body language.

Creature Drawing

I still have to finish shading the creature, but what should i do for the background?

Cement Board Drawing

No idea what to do from here, help please!!