They're awesome!
Fire is especially well made and bright. But the firelight on the guys is too 'thin', as if the fires were behind them. They would light them far more frontally, esp on the right side. Also it looks like speculars, as if the guys were shiny metal statues; possibly this is because of the bright yellow used there. The reflected light should not be as bright as the source, unless speculars.
Really cool! These are very unique designs, and the palettes you used really make them stand out.
nice evolutions!... the rabbits are great, though, the clothes are very dark in the 3rd version
I like the third form of the first (and second) creature!
Specially the eyes, and the little crack on the horn... and i love the fact that it have no feet at all!
:D