Great drawing in the third panel of todays strip, you could easily remove the text bubble from the guy on the left and still know that he's giving some kind of sarcastic remark.
I'll have to go back and check the hands in the actual comics, but I have to tell you that I really dislike the hands in the incentive pen art of Sally. I can't remember if she had claws but they just look kind of funky as they are right now. As is she looks like she could be Aquaman's girlfriend.
It might be a question of relative size, I'm not sure. Her fingers are a good bit longer than her palms.
Looking at todays comic I think that the hands are fantastic. The same problem of relative size is there but much harder to see and it matters much less. Knuckles or some type or break might make for a more realistic turn of the fingers but I don't know if they really fit into your artistic style.