Renaissance effect

Good lighting, not PS is what is needed. You also might need a lens that can work at very small apertures, as you will need the background to be IN focus as much as possible. This necessitates high power from your lights.

Here's an experiment:

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Reinassance-ish by Alveric, on ipernity

In this case, the ambient was already darkish and thus, I didn't need an ND filter. Lighting was from a Hensel Integra 500 with a silver beauty dish. The dish had the centre reflector replaced with a 7" 30° grid (or 20°, can't remember exactly which).

In retrospect, I should have used a focal length shorter than 100mm, like 70mm or even 50mm. 35mm might get more of the background in focus, but the subject's features would probably be distorted to the point of making her look bad.