Here the procedur to make it look real
-First, duplicate the main body layer & play with Image->"level" & "Hue & Saturation" & do that to the others layer too.
-Second, use CTRL+"left click on the mouse" on the lady's pic. It should select around the lady.
-Third, Select->"select inverse" & Edit->"cut" on the duplicate body layer
-Fouth, duplicate the main body layer again
-Fifth, do Select->"color range"(put it about to 130) & start with the lightest color
-Sixth, Third, Select->"select inverse" & Edit->"cut" on the second duplicate body layer
-Seventh, do all the color that the pic has & repeat that lightest to the darkest color. Adjust the level & color so it can look more real.
-Eight, Don't forget to remove the lady layer...