It’s in one piece! I haven’t had the guts to trim it yet, but I’m happy that it’s together and flat. (still needs a good pressing) I’ve been experimenting with possible ways to trim it, and am considering more of a vertical orientation. I filled in a bit more of the inner river at lower left to get the longer vertical rectangle from this piece. The inner black borders became more irregular once I sewed the 3 pieces together, and I like it that way.
Here’s how I plan to trim it:
