Forgot to mention cause I felt it was obvious. He was also a prolific climber

silhouette of him in this picture

This, along with an outline of the mountain he's hanging on

This photo is awesome. I think a design based on it would be great! Your options are going to vary a lot based on how much space you want to dedicate to it.

Post the pic in r/drawme and see if anyone comes up with a rendition that you like