BikeSkull by Dadu Shin
Oh man, this illustration has bikes and anatomy!? I'm already in love. This beautiful sketchbook image was done by the extremely awesome Dadu Shin. We're talking amazing illustration skills, no really, go check out his portfolio now, you won't be sorry! The serenity and simplicity is good for what ails you. What a breath of fresh air. Click the image to get a closer look.