Peru is truly amazing, and the photos you took prove it.
Have you also visited the seven-coloured mountain?
It's a very popular tourist attraction, especially if you stay for example in Cusco, from there you can take a minibus up to an altitude of 4500m and then walk another 500m until you reach the mountain of seven colours.
Cheers!
RE: Hiking in the Cordillera Huayhuash, Peru