I strongly suggest you use some sort of filler on the eds of the cardboard. It blatantly looks like cardboard right now, and you can really see where it warped. I'm guessing you normally play against Lizardmen
They look OK but a little monochromatic. Just a thought if you were to give them a very light wash of the actual colors ie skin cloths etc to keep the etheral look but give them a bit more depth. Also I would have done the bases either on plasti card or compress cardboard as the corigated sides take away from the mini a little.