Also, I think I figured out my issues with the Slave 1 shot. First, there is a lens blur effect across the entire shot, when in the OT this would have been a composite which would not have had consistent in-camera blur of that kind. This looks like it was shot live in Panavision (when as I said before, they were actually separate elements shot in VistaVision - the only part that would have been shot Panavision would have been the actors)
Also, I haven't seen AOTC since the original release, but is the Slave 1 just stationary on the platform in this shot? In the OT, a shot like that wouldn't have been done with a miniature of Slave 1 / the platform, but with a matte painting. Matte paintings didn't incorporate those sort of lens artifacts.
Have you thought of cutting out and separately grading/blurring different elements to give it that optical-composite feel (though it would make the project a lot longer and more difficult)? I know they were trying to make sure disparate elements blended together, but the actors, Slave 1/platform and ocean should not all look like they were shot through one camera lens, should they?
Your version looks like a miniature in a water tank, and even then that's not what ILM would have done, since water is the same scale no matter what scale you do the miniature in. For the shot of the clipper in Raiders of the Lost Ark, they combined an authentic plane shot on dry land, a matte painting of the dockyard (and Pan Am livery on the plane), and actual water off an actual pier. An OT Kamino would have probably been a live plate shot on water, plus a matte painting of the whole platform including the Slave 1, and live footage of the people in the middle.
Maybe if you cut out the platform from the water and applied separate blur filters (and not anamorphic ones, since again, the effects were filmed in VistaVision for higher clarity and less grain in optical compositing)? I'm not sure...maybe this would just be too much work.
And I certainly don't completely understand how all this worked, nor will I pretend to. It's just that to me, while your shot looks better, it looks wrong in a different way. (Though I will admit that in your grading, the thin white matte lines around the platform towers seem to give it a little bit of an optical-composite feel, even though they were there in the original version.)