I'm guessing you too are climbing? Rather you than me if that is the case!
Personally I really like the shots, I've not ever knowingly looked at any rock climbing shots so I have nothing to compare them too. If I was to critique at all I'd say that the photo's don't give any perception of height (can't see the ground etc) other than the tree's, however trying to get the perspective of height would be the last thing on my mind!
haha. yes, it actually wasnt the first thing on my mind either! i was climbing with them for part of the day. ive never done this myself before (rock climbing or photographing it for that matter) so for a first time, i think they came out pretty good. i would love to do both again too. lots of fun and great people to go wth for a first time.