Here is an unretouched image of Andrelica, straight out of Lightroom, where the shadows and highlights have been adjusted, and the image straightened:
Note that the colors are rather bland. Presented here is a workflow to warm the image and give it a little more interest. Distracting specks on the concrete and a ring were removed. Some red was applied to her lipstick, the eyes were lightened and given some blue color and her skin was smoothed:
The image was then taken into the Nik Color Efex Pro 4 plugin. First Darken / Lighten Center was applied to begin the vignetting process. The Center Size was set to 85%, the center point placed on her belt, the Border Luminosity set to -100%, and the Center Luminosity set to -6%. A Brilliance / Warmth layer was then added, and the Warmth was set to 35%. Next, a White Neutralizer layer was added using the default setting, which renders a slight pinkish cast on the image, Finally, a Pro Contrast layer was added, and the Dynamic contrast set to 15%. Here is the result:
The image was then opened in a second plugin, MacPhun's Intensify CK. Sorry, this plugin runs on Mac's only. A preset named Dreamy was applied:
Every preset can be layered with other presets, and every preset comes with its own slider. The above image looks pretty bad, but the Amount is set to its default of +100. If the amount is decreased to +45, this is the result:
As a final touch, a Levels or Curves adjustment layer can be added, and its layer blending mode set to Multiply. A large, soft, black brush was used to paint over her on the layer mask to further vignette the image. This is the proper way to vignette, because it barely increases the file size. Because we do not want to see brush strokes, the layer opacity was reduced to 45%:
Using this workflow, a drab image can be given a nice, warm look - without altering the look of the model too much. We should always strive to place the model's beauty at the forefront of our retouching efforts, and give the surroundings secondary consideration.