Different geosets from the High Elf Barracks and the Dwarven Gryphon Aviary appear in build animation as well as the death and decay animations; also this needs more than just a High Elf foundation, the floor marking is still explicitly Dwarven as well as the assets. I'd request changing the altar into something High Elven, perhaps a Power Generator base with a rotating crystal, or a nest with eggs.
I'm putting this on AWAITING UPDATE; however, if you're done, I would request that you make a High Elf Buildings pack that compiles everything instead and delete this one.