cool idea but I find NPC does not look like that

Well YES

So with all due respect. what is that supposed to represent??

???okay...

i've seen some pretty bad builds but this puts it in the shade

No. Bad.

which I find simply genius

well well... if it was bigger, you could improve it. But so you can use it in multiplayer servers as a guessing game 😉

They look more like gummy bears than mobs.

That's not an NPC wall. That looks more like a duck with a dead underbelly and no eyes.