Those look really good. The runes on the dwarf skin do indeed look more like warpaint, but it is a cool look nevertheless.
The Ogre is also very nice, as is the fur texture on the Sigmarine coat.
Finally, the guys who never skip leg-day look very good, too. Nice skintones, good contrast and the NMM gold also looks good. I think for a more naturalistic appearance you would need more dark - light contrast, but it works in a comic style way.