Wow! Those are indeed wonderful images.
I'm a new user of the Revolution R2 from California (the camera, not me!). I have gotten lovely colour views of M57, the Blinking Planetary, and an OK view of the Eskimo/Clown Face. I can't see any galaxies or star clusters at all. The galaxies I suspect are just a matter of more practice, but I think the problem with star clusters is the number of really bright hot pixels on my camera. I've got 17 super bright ones, and quite a few more small ones. Does anyone have any advice for how I might deal with this issue? It's lovely to see the colours in the planetaries, but that's not my sole reason for buying this kit!
Forgot to mention, I'm using a Celestron Evolution 9.25 inch SCT (so I *know* those star clusters were in the FOV, even if I couldn't see them.) From an urban location. I don't know if it was necessary, but I used a Bahtinov mask to focus before observing with the R2, and that worked a treat!