Hey! I'm not sure if you already have a watercolor artist or not but I'd be interested in that position! I love doing nature themed artwork so anything with "nature" is always exciting to me. I would be able to work on the pieces pretty much every night as long as I know the scope and what I should be creating (roughly). Let me know if you're interest :)
In my portfolio, I don't think I have any watercolor pieces except maybe one or two as I specialize in charcoal and chalk pastels mostly but you can definitely see lots of examples of nature lol. Here is my portfolio: https://www.bryannathestinkyfrog.com/