Currently there are only zombies and skeletons that can appear in block clusters, but I think it would be good to have more mobs there. I was thinking that there could be:

• Spiders
• Creepers
• Cows
• Chickens
• Pigs
• Sheep

I understand that that is a lot to add, so maybe mark this as low priority.

I enjoy the idea of having the bowels be dead and barren, with the life drained out of it which is why I chose Skeles/Zombies, but I will consider adding more mobs/statues in general, possibly as a standalone block

Actually, closing since this does not follow the new guidelines