What looks wrong? I've only grown lettuce once before, outdoors in dirt so I'm not completely sure how they should look. These are supposed to be loose leaf varieties, and they look a lot better than the ones I grew outside that were similar varieties. The one thing is that these won't turn completely red underneath this light, they would need a brighter light for that. They have practically 0 internodal spacing, and big floppy leaves that are too large to hold themselves up.
I mean they all do lean towards the center, but I think they're just pointing towards the brightest light, not stretching for it yet. The lights put out 2000 lumens a piece, they're T5 fluros.