Beautiful! That broth will be amazing, I'm sure. You're kinda making me wonder where I can score some moose bones in the Tucson area. Might have better luck with Javelina!
Top part of a femur and a knee. Should be quite a bit of marrow and tons of cartilage and crap to render out. Hence the overnight, long low/slow approach.
I have high hopes. Made it a few times in the past but was never happy. This one already has the right “smell.”