That looks very nice indeed. I like the clolour correction, or rather alteration in this case, and the blue laser works great against your new sky.
As for the position of the sun, the Falcon is pretty much heading in the same direction, save the odd artistic flourish to send it through a nearby cloud etc. I still disagree with Adywan's argument that the sun is in the same position except in the two shots where it is behind Cloud City. The backlit clouds are inconsistent, and really, backlighting for me doesn't take precedence over the shots where the sun is actually visible.
As for the SE shots of the Falcon flying through the city, who's to say which side of the city Platform 327 is on? This thing is circular, so there is no proof of which side the sun should be in those shots.