Adywan, perhaps you could say what your personal take is on a certain point? - Do you reckon that the initial approach by the Falcon towards Bespin City is set at 'sunset' or 'sunrise'?
Darth Venal originally mentioned the word 'sunset' a little while past, whereas vaderios then mentioned he thought that scene was set in the morning, so therefore 'sunrise'.
I myself always looked on it as being at 'sunset' (or 'sunsets' as it looks like!), with Luke arriving there later the next day after leaving from Dagobah (which could have been a good distance away from where Han decided to travel to 'safety'), arriving not long after the time we have jumped to 'daylight' scenes of Han mentioning to Leia that the Falcon's repairs are nearly done, and she is agitating about C3PO being still missing, after they have been put up for the previous night by Lando.
However, it that was the case, it could be argued that Vader 'took his time' in having them brought to him, considering Lando says that Vader arrived just before our heroes did.... I have no problem with that though.
Just curious if you (and others too) look on things the same way as I do, where the Falcon arrives at 'sunset' and eventually escapes the following 'sunset', or if you look on the events of the Falcon's arrival and eventual escape as being on the same day, arriving at 'sunrise' and eventually escaping away at 'sunset'.
Also, I wouldn't be against the 'binary' suns solution, as I always loved that 'other' sun shot as we first see the City come into view.... from a 'beauty shot' perspective. Either way, I know your final version will look wonderful.
By the way vaderios, while I loved the blue for the ION cannon, I hope the 'Cloud Car' lasers remain their existing overall colour. Always liked those as they are I gotta say.