Step 1: Sketch.
Pencils Graphite (H) on 17x14" Strathmore Windpower Bristol
Step 2: Inking.
Inks Windsor Newton Series 7s (0-2), Copic Technical Pens, White Out. Scanned at 1200DPI (Bitmap)
Step 3: Coloring.
Finish Treatment: Photoshop Gradiant layers, hue/adjustment layers. Diffusion achieved using solid fill layer based on colour channel, blurred and reducied to 20% Opacity.