Part blind contour drawing, part my own elaboration of a tree planted in one of the buildings I work in. I'm thinking of giving illustrated journaling a try. One book I'm currently perusing is An Illustrated Life: drawing inspiration from the private sketchbooks of artists, illustrators and designers. There's a lot of great examples of how it can be done. It's nice when you're starting or considering something new to see what's possible, for me anyway.
