So this is what i came up with crossing a Wolf,GSD and polar bear (i left out kangal :P)

Its obviously mainly gsd/wolf but there are polar bear parts that il point out since they are not obvious

The legs and front feet were supposed to be more polarbear like. The more inward curved back was also taken with the bear alongside the large shoulder muscles. The largeness of the back feet tied in a bit even thought they are more canine shaped.Also the curves on the back legs more resemble the bear than the dog as well as the thickness of the legs