Nick Pedersen's Sumeru is an amazing series depicting the road to becoming a Zen Master. Each illustration has intricate details and sharp contrasts that draw you into the Zen Master's journey. You can see more illustrations and info about this series at Nick's site.

Johanna Basford creates amazing hand drawn illustrations. In a day and age where most artwork you see is computer generated, it's a breath of fresh air to see such intricate hand drawn work.