I've a slight bias to Forced Seating, to get a mix, if the forced seating is for shortish time and/or people can mill. Flowers in low vases, nice. Twigs in high vases, I could like, but I'm odd. We used to do wrapped cat tails for window displays, so consider I have a range of acceptable.
Small terracotta pots with some plant - now that
I like, even if they are not in the spectacular mode - if so, they could be on pedestals. Plenty, even in two inch pots, so people could snag them freely, or, fulgent, 4" pots. Thinking succulents, or baby whatevers.
Mame, you are the artist on your and alex's day. Time for play.