Row 1: I'm not too sure why whatever that is was made darker but it kind of loses something, in my opinion. But it doesn't look terrible.
Row 2: Ok, so they added the ringed planet in... understandable. But what's with those colours? I prefer the original, more natural colour scheme.
Row 3: This time, the colour grading is actually an improvement. Awesome! But now some of the set design in the back is lost with all the added particles to this shot.
Row 4: I will admit, I prefer the altered version in this case. I feel that there's a better sense of some distance between Shaw and the derelict and it's nicely blended in.
Row 5: It appears that the ship is rotated 180 degrees. It does actually look better in the altered shot.
Row 6: I don't like this at all. First of all, I'm not crazy about the idea of having Prometheus written so big on the side of the ship. And second of all, it looks really fake and the text almost appears to be floating.
Row 7: Horrible, horrible, horrible! I know a lot of people aren't crazy about the original version either but let's forget about the size of the space jockey (which I don't mind to be honest because it's not necessarily THE space jockey). That colour grading looks tacky and overall the altered shot looks cheap, I'm afraid.