This is a great idea for a story, and I entirely agree that Galadriel would be a Ravenclaw.
As a matter of site protocol, please, please don't use multi-repeated characters as separators. Two or three asterisks, max, please.
I'm sorry but I don't see enough character development here. I know these might be you first chapters but we, the readers, should feel already comfortable and related enough with this reincarnated, adolescent Galadriel of yours, but we are not. We see no traces of her character or personality, nothing that might indicate us that this is indeed, Artanis Nerwen, other than her name.
an why would Draco make acquaintances with a Ravenclaw? I can't see his motivations. Also, it is uncommon for a Ravenclaw to have potions classes along with Gryffindors and Slitherings,