Yes!!
-They are wearing each others' favorite colours.
-the flowers mob wears are pink instead of red common meaning love, pink roses meaning happiness/trust, he's telling reigen he's giving him his all
-reigen is putting on an air of overconfidence but he's a nervous wreck, he can't stop overthinking too afraid he's not good enough for mob or that mob might realize that and leave him at the altar
-flowers everywhere!!! I don't see them too knowledge able in flower language reigen read a book once years ago but they both love plants, as they share their first married kiss the flowers overgrow over the venue, mob is too happy.
-mob couldn't write much for his vows, he's not good with words but reigen could still tell how happy he was to finally marry
-reigen tries really really reaaaally hard not to cry but ends up bawling, he had a long speech planned he even wanted to make people laugh but only managed to take the piece of paper he wrote it all on and give it to mob, mob read it it was a bit awkward for the guests to watch mob read for a while, once done mob swept reigen off his feet and crushed him into a hug/kiss
-they didn't invite many people though many people, they wanted it to be intimate
-they practiced for their first dance, but were too caught in the moment, the realization they took the last step to be each others' forever, they swayed with their foreheads pressed together.
-they couldn't wait to the wedding night, they had sex in the venue's bathroom, it was equal parts hot and filthy as it was extremely loving and tender