Have always maintained sculpting is easier than drawing. If it doesn't look right in sculpting, you just add or subtract mass until it does. Drawing, however, does not actually involve creating a thing, but rather a 2-dimensional avatar that communicates the thing, and 2D is a different language than 3D. Foreshortening, perspective, implied volume, shadow - it can be a bear. There are some illustrator stars in the comic book industry that simply blow me away with how well and effortlessly they communicate volume in a 2-dimensional, line-based medium.

Anyway - this is just a little maquette of the tortoise in my Tortoise and the Hare in Space book. I keep it next to my Cintiq - work on it when Photoshop is saving a big file, or when I just need a break from staring at the screen...