I do love your work and I think it is beautiful, but I am just trying to mentally break this down to what his skeleton would look like and it feels the horns and bony protrusions on his back are some what … odd.
Compositionally the boney bits on his back balance with his hind legs, so that works out alright and they may attach to the scapula in some manner. That might work. But the way you have drawn the head makes it look like a smaller head on a longer, thick, muscular neck. This is reinforced by the broad shoulders. So, are those horns coming out of his neck vertebra? Or are they attached to his shoulders somehow?
The fur is beautiful and I love the little spots here and there amid the stripes. And the etching on the claws and boney bits looks sweet. The way it is viewed I imagine it has more of a skeletal structure like a hyena, the slightly shorter back legs quadruped thing. But the outward bending elbows and wide shoulders are a more humanoid shape, giving it the feel it could raise up to it's hind legs for short bits.
It is definitely an interesting design that will give my brain something to chew over for a while and for that I thank you. I also admit with full honesty that your work is orders of magnitude better than mine, so feel free to disregard any criticisms I give.