Apply decoupage lacquer on the back of the glass frame - with the exception of where the picture is placed. Put small pieces of torn paper on the surface and paint again with decoupage lacquer. Cut out two frames of a new type of paper and glue on the front of the glass plate.
Or cover the frame with one type patterned paper. Apply decoupage lacquer on the glass frame, put on the paper and apply with decoupage lacquer again.
Decorate glass photo frames
Stipple or paint glass paint on the front of the photo frame. Let the paint dry and glue then mirror mosaic onto the frame.