A crazy art project just sprang to my mind.
The Secret of Monkey Island fan edition where all the backgrounds and sprites in every screen/scene are done by different artists reflecting their own profession and art style.
While one screen might be pure 8-bit, the next screen could be psychedelic over-the-top neon coloured backgrounds and spaced-out characters, while the following screen could be Cel-shading, then flat, then anime etc...
Uuuuhh
