Yes they are exactly the same. But the dark iron has not the same skin and it's what make her very different, on the other hand the ironforge one have close ''human/elven'' skin that make her closer to the elven sorceress. The unicolour eyes is making the eyes of the darkiron far away from the possible human sorceress for example. Same for the lips of the ironforge that is close to the elven version, while darkiron is not that close.
But honestly after testing them in game, they are looking better when you can zoom in. I still think the Ironforge skin could be a bit less close to the blood elf sorceress and more... pale or something else ? Apart that looking her frame by frame I can truly tell that she is already super nice but the texture (skin) could been polished for more differenciation. I have the feeling that the darkiron were reaaaaaaly polished due to the fact she was the base idea, and the ironforge skin is ''less worked'' due to the wish to give everyone a ironforge female variation.
PS : And the little detail that make the darkiron superior is the hands Awesome IMO.