Photoshop: How to creare pure digital art

Welcome in pure digital art tutorial. For this tutorial we definitely need a tablet - I will create on my Wacom G4, Photoshop - I will skip the line part which I really like to do in Painter. This tutorial will consist of 2 parts: in the first part we'll do a black and white sketch - the main thing here is to create good shapes and value, maybe to drop a little atmosphere; in the second part we'll begin to color and refine details of the sketch.