I recently had the pleasure of painting ImagineFX magazine's latest cover image!
ImagineFX - CreativeBloq
If you get the chance to pick up a copy of the magazine, there is a step-by-step tutorial showing how I've painted this image, including several Photoshop brushes and layered .psd files.
There is also a 3-hour-long video showing the entire painting process (sped up) with a bit of additional talking and explaining from yours truly. :)
