I like the nasally kind of old hen yelp you got going on. However, it sounds slightly mono tone to me.
Personally I like a bit higher front end that rolls over and ends with that nasally raspy yee-awk. It could be if you play with the tuning a bit you'll find that higher end . One of the first things I always like to look for on any box or pot is if I can get a full range from Kee-Kee to raspy yelp.
That's my personal opinion, others may hear it different and look for something completely different. Disclaimer, I'm not a call maker or call judge or anything of that nature. I just like a good call that will yank gobbles out of turkeys, pull em close and appreciate fine craftsmanship. I cannot commit on what exactly it takes to make it. But what I look for in a call.
I hope this description is somewhat helpful. Good luck to you and hope you find a ton of joy in the process of finding lots of turkeys in your calls.