On the opposite side of the alley from the scene of Grid #11 is an brick wall that is almost completely engulfed by ivy. This is a very subtle HDR, but I think it brought some delineation that would not be otherwise visible. I'm finding that I like the monochrome HDR better than the color about 40% of the time, so it is well worth the extra processing time.
Camera: Nikon D700
Lens: Nikkor AF-S 50mm f/1.4G
Exposure: ISO 200, three brackets around f/22 @ 1/2s, tripod, RAW
Lighting: Skylight shade
Location: Grand Center Artist Loft Studios GPSProcessing: Lightroom 3, Photoshop CS5 HDR Pro and Nik Color Efex Pro, Nik Silver Efex Pro