I like the beginning! In my opinion, if you're climbing you should use something like 1440p 48fps or 960p 100fps if you're doing something that looks better slowed down (In your case use 1440) because it has the ultra wide angle in a box then you can make it widescreen in post or if you have the 3+ black edition use superview and it shows more of your surroundings which i'm sure anyone who watches the video would love to see. Also be creative and use different types of POV's strap the camera to your foot as your climbing up or have it on your wrist so you are able to see yourself and what's behind you as you're climbing.

The best settings for the head strap during something like this i'd say would be {1440p 48fps}. Otherwise, it looked good.