I've just read the article that goes along with these pics, and very interesting it is to. One part of of the build concerned me though. He tells how over a period of two weeks, he bent the Hazel rod, by means of immersing the rod in a pipe of water for some time, then continually wrapping it in soaking towels, whilst slowly bending the rod to shape. Would it not have been easier to have bent the rod to shape, over a fire, over a period of a few hours or less. I have used this method to
make buck saws in the past, and found it very effective. I'm sure Otzi would have used a faster bending method, especially in doing running repairs.
Just my opinion, and I'm no expert.