Porcupine's world
Porcupine is actually an alien. Well, technically not. They come from under another (4 times smaller) cubical planet which is split in 4:
-Dark, violet forest with a notable amount of lianas to swing on hanging around the trees. Murky water. Dark-coloured soil. Trees' leaves are spiky.
-Green, roofed forest thing.
-Gold, weird optical illusions and complicated light physics going on there
-I think 'M' in the drawing stands for 'maroon', though I don't exactly remember what I was originally going for there.
It never snows on the surface of the planet. However, snowflakes can be seen falling from the ceiling of the light blue crystal caves.
I know that Porcupine's world might be as well under another dome. Another thing I've thought of is that Porcupine might've actually come from Bananananeni.
I might remake this whole post.