Gypsum sketch

"Gypsum sketch"

Charcoal

I drew a sketch of Gypsum that's name was Medici.

But, I have the doubt for this picture.

Why?

Because I was not able to draw three-dimensionally. 

How to draw?

Please tell me.

It is necessary to draw the shadow, I know.

But......I don't know how to draw the shadow.

Mmm......

Thank you for reading.

See-ya!