I think the owner would love the photos!!

These look great and I don't have any tips because everyone has their own style, but I'll share some of the things I nerd out on with animal photography:
I love making their eyes super sparkly and detailed.
Textures, like for fur and feathers, are fun to work with.
Light! Something you are obviously super familiar working with in your stellar landscape shots.

This photo made me laugh out loud:

Pretty sure that's the feline version of Peter Griffin from Family Guy.