That is a beautiful call. To me, there's very little that looks as good as walnut. We have a lot of walnut trees on our place. I have some wood "curing" that I'll do something with at some time. I've never made a call, other than one from a turtle shell one time but I may have to give it a try, after seeing the beautiful work that you've done.
I also have some butternut, pecan, cedar and few other pieces of wood that are drying nicely. Some of that will have to be used in a "winter project" one of these days.
"If he's out of range, it just means that he has another day and so do you."