I picked up the Earth X Sketchbook at a comic sale last weekend. I haven't actually read Earth X yet, but the sketchbook was 1$ and I loved the art. Now that I've read the blurbs, I really want to read the series.
I had to go to the laundromat yesterday, so I got comfy on the couch there and sketched.
This is from Alex Ross' Hulk. He looked very gorilla-ish and I had fun drawing them. The sketchbook I'm using now is quite large, and my scanner is broken, so I took photos of the individual parts of the page.
and here to see the original (again had to photograph the page).