Sadly not for some. These curious worm archaeologists have no idea why someone would waste the time to carve out a pretty plain stone block.
I had the very same idea...haha. My plan was the underground part to be another head, though.
Honestly, I didn't expect this :D The inverse concept is great, and I like a lot the colors you used and the stone feel.
I love worms :P Especially the Hallelujah grenade :D or supersheep... oohh good memories. And a nice piece of pixel art as well.
The underground is very good...