Not all the Tibetan mountains are forbidding like the Himalaya summits. Most of them are accessible to average trekkers, but the unique environment of the Tibetan plateau gives them a surreal beauty.
The Tibetan landscape is upside down: the higher regions are often huge plains surrounded by soft hills, whereas the lower regions are steep valleys with more rocks than grass and trees.
In winter it gets freezing cold in the Tibetan Amdo area, but because of the dry weather, it never snows much. Therefore, you never get the kind of Alpine winter landscapes which we are used to from Swiss postcards.
Most pictures of the Tibetan areas are taken by sunshine; this is actually true for all the regions of the world. The rain reveals another aspect of the landscape which is definitely worth spending some time on.