Left Arm Sleeve Tattoo - Demon Snake

This is what a business in Japan was looking for in their graphic design

I'm looking for a design for a sleeve tattoo on my left arm. Must contain a snake, and the head of the snake must be demonized in one way or another. I'm thinking like split head with one side is demon like or that the mouth opens up to reveal a demon skull. This is no way is meant to look physiologically realistic. I want the snake to be colorful. Red, pale blue, white, black. It should wrap around the arm and the head will end up on the chest / left pec. The overall style would be japanese, so the filler could be sakura or clouds or even trees. The snake should appear gargantuan in comparison to the filler. Read more