What do the hina dolls and peach flower decorations symbolize?

雏人形娃娃和桃花饰品象征着什么？

And, of course, all the women had flower decorations in their hair, which just made it all the more hilarious.

当然，所有的女人都在头发上装饰了花朵，这让整件事就变得更加滑稽了。