Monroville said:
The Falcon (especially when it is to the right of the cloud, immediately before moving past the sun and the camera swinging around) looks either too bright (in comparison to the cloud right next to it) or there is not enough detail... something just looks odd or CGI about it.

I do not think the Falcon is too bright. I do think there is not enough detail, or that the detail that is there is not sufficiently dark/pronounced, to the effect that the Falcon seems whitewashed and artificial as it comes up to the point at which it is closest to the viewer.