Season 1&2 lighting is better than 4/5/6/7
Season 3 is sort of in-between
Star Trek Generations is the best example of outer space lighting and remains the best looking Trek film imho.
Hmm, Generations is actually my least favourite looking TNG movie. Too much orange! It felt like the whole movie was happening as the sun was setting. I guess that's just my thing. I preferred the subdued lighting of later seasons over the bright, unnatural-feeling lighting of the first and second seasons.