Rock Climbing in Humla?

The scenery around Nepal is spectacular, and some of my friends are mad rock climbers. So I was taking photo's of potential rock climbing sites.

Now I am unsure if this would be great sites for climbing. I am unsure of the geology, if the cliffs are stable, and how accessable they are. However if there was a medical emergency, it would be difficult as Humla is extremely remote. There are no roads, unreliable air transport, and not many staffed medical posts.

But I am fairly sure alot of these cliffs have not been climbed.
I'll post up some of the photo's, so people can see for themselves.

Enjoy!