I like both the new angels and the new balor.
The former are quite good; I like the facelessness and their lack of legs both, as it makes them appear more like extensions of a divine will than beings in their own right. (I'm going to ignore the "astral mercenaries" idea; IMO, the whole point of angels is that they serve some deity, good, evil or indifferent.)
As for the balor, it looks pretty damn bestial, and at last definitely different enough from the pit fiend. (Balors and pit fiends having been one of the prime examples of pointless symmetry between demons and devils.) Also, the almost translucent sword and the whip coiling around the balor are good touches, I think, showing the weapons as parts of the balor as a whole.