For carnivorous, are we going full-on obligate carnivores (they can't actually eat vegetable matter), or just cultural reasons because there's no plants around for them to eat?
For humans, to get away from the whole 'pastiche of Medieval France and England' thing that tends to dominate, we could always look at the Mediterranean. If high elves were Roman for some reason or other, then that could imply cultural spread or association in the past, should humans derive more from late-medieval to Renaissance Italy, or the ERE. Though it could also be interesting to borrow from the Middle East, since that's a lot of medieval history that's rarely remarked upon... or, hell, go further east.
And now I'm wondering if we should borrow from steppe nomads. HORSEPEOPLE. Or sheep. Majestic battle-sheep.