25 colours.
My original mockup (from last autumn) for a simple 2D platformer.
The game itself is nearly complete, and is starting to look better than this mockup. I'm forcing myself not to change this mock up to how the game looks now in hopes that it can serve as a before/after example later on.
Best viewed at 2x. | 
@yumbie: Thank you! :)
@Connor: I've never played Raskulls, so I hope the likeness is a good thing (?) :)