I've been thinking about doing this hack for quite a while and I finally had some time to do it and hang in on the wall. It turned out great. It's an original way to add art and increase the amount of lighting in the room.
I used 3 Ribba Frames and glued a 14" x 14" mirror on each of them with construction adhesive. Then I printed pictures of flowers on a transparent adhesive paper made for windows and attached them to the mirror.