Here are some pictures of Galadriel that I think would look pretty. Maybe you can make something pretty out of one or more of these(it relly does'nt matter which you use, they are all very good. Maybe something shiny or glittery like for Galadriel, since she is the Lady of Light.
Text: "The Lady of Light,", "Queen Galadriel" or something similar in a pretty or magic font(kind of fairytale-ish, or maybe even a LotR font if you can)
Here are some Hermione pictures that you can use. Also here I really don't care which you take, 'cause they are all beautiful pictures. Maybe in some gryffindor theme, like red and golden, or Dumbledore's Army with blue and/or purple.
Text: Hermione Granger with the quoute "There are more important things..friendship and bravery", or "Imagination is more important than knowledge"(it's not a Hermione quoute, but I like it!)(also in a pretty font, kind of magical)HermioneHermioneHermioneHermioneHermioneHermione
If you are unsure, you can make different sets, too. Take your time and don't rush. I'm sure it will look very good just the same!