Beautiful work on it, tho the griz is a bit of a hunchback.
That's because grizzlies have a hump back.
Rentzschke was a master engraver. Details matter.
I'm familiar with grizzlies. I will say that is a very german style rendition of a bear. Most American bears don't have one foreleg 2 foot higher than the other.
The lynx or bobcat is beautifully done. He was a master engraver, there's no doubt about it.