Karen, you know, this looks like really good work to me. And I think khina's attitude and body language are excellent!
There are a couple things I'd change:
1) Have your arm already extended before you cue "watch". She knows the watch, that's not the problem. However, you'll see how the extended arm affects the head position - so we want to ensure we've got it extended, position affected, and then 'naming' what we love (as Susan Garrett would say).
2) Loosen up a bit. I know that's easy to say, and I'm not really sure how to advise this, but I think adding more movement/break out rewards (food chase, hand target chase) might add a bit more energy and looseness to the work. She's eager, focused, and could benefit from a little more flow.
I do notice a bit of the outside lean when you come onto her. Could be her, could be a border collie thing, could be she's learned to keep an eye on both you and the hands doing this. To help change it i would:
-use a barrier on her left side to help support her in.
-lure her directly into the food when you set yourself up on her (this will distract her) and then lift that hand straight up and then extend out. When you have focus, mark and feed high. This way she's focused on eating from the hand as you set up and may not notice you stepping into place as much, and thus won't drift out.
Repetition should help this, too!
All in all, a great session, karen. You really are in a very good place with all this work. See if you can liven your session up with a few novel break out rewards, and don't be afraid to use some direct luring as described to set her up (or yourself onto her) with a little more control before the focus work.