It's perfectly natural to have slight variations in skin tone, however, in this case you have a shift in tone from warm golden tones in the upper arm area just below the shirt through to rather pink magenta on the fingers. I agree that you should try to make the hands match the torso, but personally I'd also try warming up the entire skin area just a little. You can always use a soft brush and the history tool or a mask to alter certain areas independently if required. Just give it a tweak and I think you'll find the image improves.
As a second thought, you could also lighten the face a little and selectively add some shine to the hair. The face is the natural first point of reference, so brightening it here to at least match the luminance of the other areas will give it the attention it deserves.