Well, I was looking at your list, and perhaps you could look at Valse Oubliee No.1 or Valse Impromptu. You already have plenty of flashy fast pieces, so have the more intimate kind of Liszt. Think about Sonetto 104 del Patrarca, however, the best piece I can recommend to compliment absolutely everything in your list is the Wagner-Liszt Opera Transcription "Liebestod from 'Tristan and Isolde'". Oohh.. It is breathtaking!
donjuan