I'm not sure if this is the best crop or not, but I cropped it to a sort of square aspect ratio and tried some different Lightroom factory presets on it, as well as a couple of Matt K's free LR presets, along with some minor adjustments to exposure, or to the blacks,and or highlight recovery. You know it's a good portrait when it can be re-interpreted multiple ways, easily, and ALL of them look good! (Just as an aside, I PM'd Jazzie about a half hour ago, and asked if it'd be okay if I posted these photos..she said it was okay.)
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Jazzie_crop_A_bleach bypass
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Jazzie_crop_B_sepia
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Jazzie_crop_C_sepia_flat tone curve
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Jazzie_crop_D_Matt's Sin City dark red
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Jazzie_crop_E_Twilight_adjusted
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Jazzie_crop_E_Twilight_adjusted