I photographed this at Holmesburg Prison in Philadelphia, PA at an Abandon America workshop. The room had this very strange red light in it and I really thought it was interesting. I liked looking from this room into the cell across the hall that just had natural daylight in it.
Processed in Photoshop CC using multiple luminosity masks. I then brought into Macphun Intensify to bring up the clarity and details. Imported it into Topaz Impressions to play with lighting and texture and then finished off in Nik Color Efex again for lightening and darkening areas.