While making a website, I tried to find ones I admired in order to take some cues from them. One is the Peggy Guggenheim Museum site. I like the use of black-and-white photography at the top which gives the page good balance, the whitespace and the muted, coordinated colors.

Prada's site looks luxurious because it uses large blocks of solid, dark colors, yet displays clothes/models on white backgrounds to give clearer images. The contrast between dark and light works well, as does the use of moving images.