Just for fun, the next time you're making paste paper, use some leaves! Here's one that I did, pressing a leaf into the paint. I think it turned out great!
I used a small leaf on this paper. I just used the same leaf over and over, until I covered the whole sheet. It was quite a large sheet of paper, this is just one corner of it.
I did another sheet with a large fern too, that also worked well. I know it's been done before, but it was new for me!