I don't think the size of the Falcon needs to be changed. It's large enough to be noticed, but not small enough to miss - post-RotJ dimensions be damned! :)

I also don't think it's necessary to add any 'engine glow' power down,etc. to tell the viewer "LOOK HERE!!!" One of the nice things about the shot is that you don't necessarily see the Falcon right away. When you finally notice it for the first time, you get that sense of "oh, there they are," and "I can see why the Empire wouldn't even notice them, since I didn't." An engine glow would stick out and draw the viewer's attention to the Falcon too quickly.

Seriously, at this point in the discussion we're just grasping for additional things to change and/or kill some time to discuss them (which isn't necessarily a bad thing) But, since these suggestions are coming so late to the party, they must not be all that necessary to fix in the first place. Discuss at will, but keep the big picture in mind. It's easy to get bogged down in the minutia and the end product suffers from it, rather than benefitting. I think Ady's covered all the minor annoyances, anyway! :)