Hi Amy:
Redirecting is good. If students are being distrated by room decor, I suggest to play into that distraction. How about getting either an easel with large note pad, or just the newer Post-It sticky poster paper. When student seem to be distrated, walk over to the poster and write a key word, illustration, term, or bullet point. Essentailly, you're refocusing the students to your change of direction, and you're assisting their learning by writing needed informatiom. Seems like a simple way to redirect wandering eyes.
Regards, Barry