An abundant seabird in Alaska.  The horn puffin spends its summer on cliffs  Building their nests and caring for their young.  In winter they stay out at sea. I have this one floating on a piece of driftwood.
I attach my mosaic art onto an MDF board (Medium-density fiberboard).  I grout to the edge, paint the sides and back.  Signature is on the back and ready to hang.