Sketch book update: Drawing a lot of butts. (Patreon)

So the reference I am using is all from New Masters Academy, and I am still going through the first model's folder. There are almost 300 photos of Alexandria, many of which are from the back.

Unintentionally, I have filled the first few pages of this sketch book with her butt.

I have noticed some new things since the first post. I cannot use the stick charcoal AT ALL, at least not yet. I have a very heavy hand, and it was difficult to smear the charcoal around and create shadows. I kept applying too much, and then it stuck to the canvas texture. I just ended up just making a mess, but I knew I had to keep experimenting... 

I tried lighter lines, darker ones and heavier shadows. I still felt like I had little control over the tools, and so I decided to put away my little charcoal kit and go back through my pencil box...

I kept the pencil I was outlining with and a really dark charcoal pencil, but the other two are good for filling in the shadows when I turn the tip onto the side. They give me the right amount of control over the values and are soft enough to blend. 

I still need more practice of course, but I like these butts. They are good butts.