Stacy, I posted in your thread as well, but I wanted to say THANK YOU for following up on the RAOK and letting me see what a great job you did. You should be pleased, it turned out really well.
Good eye. There is some Marsilea in the back corner I didn't add to the list, but the taller plant you're seeing I think is some kind of terrestrial plant. I ordered some plants with the intent of making these wabi kusas, so the seller threw in some extra plants that I really don't know what they are. If I were trying to recreate the look, I think I would try either Marsilea or Ranunculus inundatus.