You got some really good shots here. Quite a discipline to work with a single focal length. 5, 6, 7 & 8 going from the bottom (!) are my faves. Very nice indeed. Did you have a good trip and was this the only camera you took?
Had a great trip, I was looking for a compact alternative to my old M9 and the X2 worked like a champ. I don't have any complaints about the Sigma, just went for the Leica more, especially in after dark/low light shots.