If you’re using New Canon Cut, why not use it for the Dooku beheading?

The audio and things like Palpatine still mouthing words he isn’t saying aside, the shots in your clip go by too fast and Anakin actually still looks regretful. I also don’t agree that Anakin would be that casual about killing Dooku. He hates Dooku. In NCC, he’s not apologizing for killing Dooku but aware of how and why he did it. Palpatine then reassures him it doesn’t matter anyway, it’ll bring a quick end to things, which is more in line with how CW Anakin would justify it.

EDIT: Oh I see it’s edited from a draft a few workprints of NCC ago. I recommend working from the original film as the source as much as you can; you have much more freedom to tweak the scene the way you want that way. And like I said, I’d be willing to provide raw materials if you want to use some of my choices before I put out a final version.