I had lots of visual material of Rhea thanks to her allowing me to photograph her. So after I had completed my Mike Leonard sketch I looked through my photos of Rhea and picked out the best photos which I could sketch from.
I try and cover as much area by blending in the pencil and doing this several times. So I will shade in an area with a bit of pressure to create quite a dark tone and then blend it in using my fingers. For a softer look I will also use my blending stick. Once I have built up enough tone I can then begin to use a rubber to gentle rub away the pencil and give the effect of light. This is what creates that realistic look. Where there is very dark shadow, for example, in between toes and fingers, I use a lot of pressure to give the effect that there is shadow underneath and this then looks almost 3D.
I would have liked to have spent more time on these sketches which I have done in my sketch book. However they are practice pieces to give me more of an idea how something similar may look for my FMP.