As you can see, this one was shot in Tungsten white balance to give a more sci-fi effect since the staircase looks pretty sci-fi to begin with. In addition to lots of clone stamping, editing involved blending together three exposures in Photoshop, boosting contrast in Color Efex Pro 4 and finishing things off with some dodging and burning, smart sharpening and a 4x5 crop to give the composition better balance.
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As always, thank you for looking!