This creature resembles a cyclops; basically, if you paint a cyclops and add a couple of stones to it, you'll get an interesting monster, but it takes quite a while to create.
Added 4 minutes later
Ideally, it would be better if the creatures didn't repeat. The stone monster and the beast are both based on the cyclops.
Added 1 minute later
Or, let's add a couple of arms to the wyverns; that would also make for a good unit.