3D Breakout.

Breakout designs use depth instead of pattern. A shark, a tiger, a dragon or an astronaut is drawn as if it were leaving the display, and the fold sits in the middle of the action.

Done badly this looks like a sticker on a screen. Done well the crease helps: it interrupts the subject at its widest point, which reads as impact rather than as a defect.

These are the loudest wallpapers on the site. They need a bright display to land, and they are not subtle.