Boktai of Doom is a mash-up of the video games Boktai: Solar Boy Django and Doom. Boktai is about a vampire hunter who uses sunlight (captured by a solar sensor on the physical game cartridge on Gameboy Advance) as his weapon.
The image is based on a poster/cover design for Doom – click here to view the original.
I started with a pencil sketch, then scanned it and brought it into Photoshop. Using a Wacom tablet and a ridiculous amount of layers I painted over the pencil sketch and added colour.
I also created a Z-depth layer to simulate depth of field with the Lens Blur filter in Photoshop. See below for some progress thumbnails.