use Michaels $5 12×12 frames ( I think they call them record album frames). Black and white photo’s, and you could even cut 12×12 scrapbook paper for the mat effects. @ Home DIY Remodeling. Love this idea for a hallway
Plywood floor. Inexpensive paintable floor. A pinner said "Did this in our house...we just put the sheets of plywood down and routed out grooves...then some stain and poly...its been ten years and still looks great and we love it..."