Step 1: Thumbnail sketches
Step 2: Pencils
Step 3: inks (traditional inks with brush except for the background lines, done in Manga Studio using the perspective ruler tool and a few different digital brushes).
Step 4: flat colors (done in Manga Studio)
Step 5: shading/highlights/gradients
Step 6: The final piece!
On a side note, I just created a twitch account: https://www.twitch.tv/tomrogerscomics/profile where I'll be livestreaming for free on a weekly basis if you'd like to watch and chat at me while I draw. (I'll let you guys know once I figure out what time I'll be streaming regularly.)