I used to like Snyder's visuals, but they've grown old for me. I found the visuals in MOS, Watchmen and 300 stunning, and while Sucker Punch is a HORRIBLE movie, it does look pretty good. But I found BvS to be an incredibly ugly film. A lot of it just looked cartoonish and fake, and scenes that should have been colorful and vibrant were dull and washed out. It's very telling that the TURKISH AIRLINE COMMERCIALS that were done to promote BvS looked better than the movie itself.
I've said this several times before, but it almost feels like Snyder got pissed off at fans for complaining about the dark elements in MOS (some of those complaints, I think, were overblown) and so he doubled down on that in BvS, making the darkest, ugliest movie he could. And while the JL movie seems to have more humor than BvS, it still maintains that dark aesthetic, set in a world where sunlight apparently doesn't exist. But, to be fair, we haven't seen more than a couple scenes.