I want more races with whips. I've got to rely on goblin lashers right now that get torn apart by my wrestlers before they get cage trapped or run away screaming. I'm all for finding whips and scourges more often. They're fun to line my labyrinth with.
Reccomendations:
I'd think the amazons should fight with wrestling, archery (not crossbows, explain in a minute), and swords. Greco-Roman, so big on wrestling and expedient use of short swords, and they're actually famous for their dedication to learning archery. Mainly that they cut off one of their breasts to get them out of the way so they could draw back the bowstring as far as they needed.
Ungoods: Whips and trap components mate. Giant corkscrews, spiked ball, upright spike... S'funny how many of those trap components could have misconstrued and altogether inventive sidepurposes for the sufficiently twisted.
Sages: Diddly on the ideas, you seem to have said it all. Militant conservative lot, heavily beefed up aggression, and full to the brim with piss and vinegar. I like it.
Orcs: Think Dimmu Borgir. Screaming, warpaint, and lots of breaking things. I'd suggest that if it's possible, you have a portion of them go into berserk moods and wear no armor. Maul, hammer, hammer, hammer, more hammer, mace, flail, morningstar, spiked ball, More maul, battle axe, extra large trap axe blade, great axe, and two handed sword. The first emphasis is on BIG WEAPON. The second emphasis is on DESTRUCTIVE WEAPON. The third, close range. These don't come to mind as hiding behind fortifications and ducking behind cover.
Valkyries: Less scantily clad, more chain mail, and plate armor layers. These types went about ferrying souls in armor. The Amazonians did not. Pick and choose a weapon aside from the trap components and the whips, because the vikings used rather a lot of tools to get their job of conquering done. don't skimp on wrestling either.
Final Reccomendation: Put in a LOT more of the Sage than there should be. That's one faction with a beef with every faction, so it's going to need to be able to hold it's own. When these elves pick a fight with some of these people for being impure, they're going to fight right on back for their right to be scantily clad and to violate each other with screw pumps.
I love the idea mate, and hope this all gets finished with great elan.