I feel like my drawings got a lot more dimensional and interesting once I was able to achieve variable line width. I love loading different colors into the pen and going HAM on paper that totally can't handle it. My sketchbooks crackle when I turn the pages. They buckle and heave and are exhausted from their tribulations.
Birds bikes and bells. It started as a quick bike doodle and then I got carried away. I kinda like getting carried away. I seldom know where it will end up.
