So, it's a bit obvious this is a soul sand valley. But what's that more 'blue' lava stream coming through?
That's water! And the little ball of floof at the bottom? Sheep! Though, the green stuff is... obvious.
Grass. And since magma cubes and blazes (probably) don't spawn, so I decided to put them in too!

For Skinners Olympics Biome Mini Comp: https://www.minecraftskins.com/skin/16521008/mini-comp---biomes---pixel-art/

Team Rose, Division Neptune

note this is a monstrosity and nothing compared to habearry ;w;