I agree with Bingo and Zombie. If Lucas had wanted the prequels to start off somewhat matching the originals, he could have come a lot closer than he did. Digital can be manipulated to have all sorts of looks - muted, saturated, washed-out, grey scale, warm, cool, grainy, etc.
Instead, he went with what he prefers - style over substance. An over-saturated, surreal cartoon look and then he chose to try and force the originals to match the prequels. As the technology advances, so do the releases of the originals. That's why we get a new version of Star Wars every few years - Star Wars 4.3, Service Pack 2.
I haven't seen this film, so maybe it looks better when watching it, but just looking at this screencap it has that cartoon look I was talking about. The colors are weirdly saturated, the lighting seems strange, and people look like they aren't actually touching the ground. It looks nothing like reality.

Compared to this picture from the original trilogy;

This seems much more real. It has a.....there's a...it's.....I'm sorry, what were we talking about?