I wouldn't
REALLY do this to an image I was trying to salvage.
But I was watching a tutorial on this particular graphic design trick, so I thought I'd try it out.
- Crop, lengthen the canvas size to make it portrait, fill in the extra space with sand copied and pasted from the cropped area.
- Adjust levels to brighten
- Add new layer underneath the original, fill with gray selected from the image
- Hide the original image behind a layer mask
- Select a square and set it to a scatter pattern
- Paint in pieces of the original image
- Add drop shadow to the pieces
Kind of fun!