That looks really nice. I would want to get more into archery but just don't have the space for making or using bows and arrows.

First you need  a two foot section of a dead agave stalk two to three inches in diameter. Lightly sand and then cut two inches off the bottom end. Hollow out the long piece. The inner core is soft. I use a long thin saw and work from both ends. Might take ten minutes. Glue the bottom back on and apply a few coats of spar varnish.
Itied on two spanish ring knots to secure the strap and cover the cut on the bottom end.
The strap is not so easy    I did not want to use leather and did not want to spin 300 plus feet of dogbane, so I opted for  four ply yarn. Black and camo. Forty strands eight feet long.
The strap is finger woven in a chevron pattern. Worked on it for an hour or two for close to a month. Came out ok .
Over the shoulder back quivers are not great for hunting, but are good for roving, which I do a lot of.
A two inch quiver wll hold four field points and one flu flu with a blunt tip.

Looks really nice walter!

That's what I've been finishing with all the experiments I've been doing with stinging nettle. My next project is going to be a fishing net.