Here's a series of images I did for an upcoming tutorial in Photoshop Projects magazine (unless you live in AUS/NZ you probably won't see it). Make sure to enlarge it a bit from the default display.
I started with a generic touristy view of downtown LA from Griffith Observatory, color corrected it with iCorrect EditLab Pro
, added a 1940's-like stark+soft effect with Topaz Adjust
, then yellow sky and artificial foreground bokeh with Topaz Lens Effects
, followed by red/orange/black vignette+grain (also Lens Effects), then artificial sunset and lens flare (Knoll Light Factory
) and finally some grunge with Retrographer
A larger final version is also attached.