They could have hired the OG trilogy costume designers, or poached the GoT lady whose work is amazing. I agree it's ridiculous for the price tag.
My biggest issue with the series so far is Galadriel. I'm told she is awesome with all her titles, etc. She is a moron, or worse in almost every scene. It's a poorly written character.
Also, some of the dialogue is horrible. I'm surprised people aren't memeing about the sea on here.
At least we got to see were all the money went last episode.