Because the wall is so big, it looks like theatre curtains would be the best way to cover it. I found some online for $600. I'd prefer not to spend that much so I've decided to leave it for now until the studio is done. It's possible that once I have the windows blocked and the lights low, that it will hardly be noticeable.
It's beautiful enough that I don't know that it really needs covering. It just seems like the ocean theme might not fit the romantic look I'm going for in the studio.