Is there an asy way too

is there an easy way to make, say a banshees face, go from blue, to Brown, (as if she was african american), and keep the same basic shading, what tools would i use...this is driving me nuts.

this is in photoshop by the way

Yes...
Select the area you want to change and go to Image...Adjust...Hue/Saturation. Play around with the sliders until you get the desired effect

or you could redraw her face and add your own shading and stuff like that