@ossobuco,
Thanks, osso!
It was my first foray into doing tile so I'm pretty proud of myself despite the mistakes. I learned SO much along the way that I won't fear doing something crazy again next time (nothing ventured, nothing gained, right?).
I also did the constellation Hercules on the ceiling but I installed one piece of tile (with one star point) backwards so nobody will ever recognize it, even if they're really familiar with constellations. Mo and Mr. B have been asking me what it's supposed to be and I won't tell them! I'm waiting for someone to see it and point out my mistake.