Hi Saad,
sorry, this are not my pictures, i found them in the internet, and the information about this route are fine, and the photos are great.
I also made a lot of photos (slides), but with an analog SLR camera. My girlfriend had a small digital camera, but in the high altidude the quality was not the best. The colors were not allways correct (a very dark blue, more violet sky, and a sometimes the contrast is low). Maybe, if you are using a SLR camera, you can use some filters.
greetings from Vienna
Georg