As a general rule; if it's not dripping, melting, protruding, geometric, or just plain creepy it's probably not worth drawing. That's how I approach my illustration and it seems to be working out. Plus, it keeps my hands sharp—and that's important for designers who might as well have computers fused to their fingertips.
Most of these works are amalgamations of Sharpie markers, spray paint, and digital coloring. (Give or take.) There are also certain recurring elements—such as fire and amputation—that carry narratives throughout most pieces. I don't set out to make every drawing the same but, I like the idea of approaching each image as if it's already familiar. Though, in any case, I pretty much just do whatever I feel like.