I doubt Sarah actually remembers people's names.
So for once, it's an art comment, not a text comment! :P
I must say, you draw your hands quite well, but in the last panel, the hand doesn't quite seem right, and I think I singled out the problem:
The thumb. I know that it's supposed to be facing down like the rest of the right hand is, but for some reason, it looks to me like it's facing up as if it were the thumb on the left hand.
My hand anatomy sucks, so I'm not sure how I can really give you advice on how you'd fix it, unfortunately. :/