hmm a tut would really be a waste of time , its really easy to do.

grab ur cropped picture. grab ur chick/shirt or watever.

put the render on the pic, find the angle and distort it. so it would be running on the same angle as the body.
change the overlay to multiply or vivid light or watever , a few layers might be needed , also play with the opacity so it doesnt look too strong.

and thats it really

the 2nd and bottom ones are just desaturated and made it a dark blue colour with colour settings