Just for fun, the next time you're making paste paper, use some leaves! Here are a couple that I did, pressing a leaf into the paint. I think they 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.
On this green paper, I used a large fern and just pressed it down a few times.
I know it's been done before, but it was new to me! Of any of the paste papers that I've made, these are now my two favorites.