Greta got the bone from the beef roast we had, and she just went to town on it!
I’d say that Greta is enjoying herself immensely right there. That one photo where she’s looking up just to me says, “Can I help you with something?” in that kind of way that really says, “I really don’t want to talk to you right now.”
Either way, Greta seems quite content with herself. And that is a good thing.