I love photos of people. To study their faces and try to read their life's experiences from their protraits. Hence I am fascinated with your pictures. I notice that many of your photos were taken at your maximum telephoto range and hence probably candid shots. I bet you wished you had a longer telephoto! But there are limitations to long telephoto shots on moving subjects. Himalayas is a massive region. Difficult to guess where you were but the people look very homogeneous and in a fairly civilized part of the Himalayas, Bhutan maybe?