Yeah, Yohji definitely went for sexy. He said in an inteview: “Simply, I wanted to break this taboo (that he can't do sexy) from a long time ago. This time I wanted to play with flower gardens, because sexuality and flowers’ beauty for me are the same… Flowers are not always beautiful; women are not always beautiful. It depends on the conditions." Its a pretty disheveled morning after look. IDK if I'm a massive fan cause I think he's really good at what he normally does and I feel like he did this just to prove people wrong. But, its definitely still really good and there's a lot to like.
As for the wedding dress, I think it might be overthinking it. Yohji has closed/put near the end a few shows before with a wedding dresses. Probably just kinda fun for him. He also did a show back in 99 of wedding dresses. Here's some examples from random shows: