This decoration is made for the potion slime farm with a touch of cold colors - bluish tones simulating how the cold of snow golems have frozen this giant slime alive. If you use the decoration you will have to change blocks from the farm since they are not the same in the 2 schematics, the inside is much better decorated and is more welcoming in this decoration than in the farm schematic but it's up to personal choice if you want to replace the blocks.

The corner hole with blue concrete and diorite walls is for placing a SNOW GOLEM there in case you run out of snow blocks at some point since a few are lost and you don't always recover all of them