How many times have you tried putting someone's head on someone else's body? Possibly to make them look buff and big?
1. Here we have two photographs - One, is a small, dark, low-resolution picture with tanned oiled skin, The other is a light, high resolution picture, with a white non-shiny skin colour - perfect contrast!
2. Ok, firstly.. lets lose the difference of quality. Re-save the picture on the right (we will call image 2) So, in photoshop once you have your picture open, click File > Save for web - and you want the JPG quality about 20.
3. Right, close that image down and reopen the JPG version. Now, we want to turn the image from a JPG to a PSD so click "Layer > New > Layer from background" And now use your eraser, pen tool or lasso tool to cut out the head.
4. Right, Select > All comes next (CTRL + A) and you need to paste the cutout head onto your builders body. Then scale it down to an appropriate size and click the eye on the layers palate to hide it.
5. Back on the builders body, you will need to hide the head by using the clone tool technique. So, start out by grabbing the clone stamp tool (s) and then a soft brush around the size of 20. Click ALT to define a point (in this instance, we will want the black background) and then click on the head to hide parts of it. You'll will need to keep defining your point with ALT.
6. Ok, make your head visible once again then click the layer to make it active, and scale it down to size using Edit > Transform
7. Ok, the problems we now have are: Colour, oiliness and the fact that it does not blend.. at all! Lets start with the colour, click Image > Adjustments > Hue/Saturation - I eventually found Hue: -3, Saturation: +40, Lightness: +5 - makes a good combination!
8. That's looking.. a little better. Next, lets add the shininess - Filter > Artistic > Plastic Wrap - 10, 20, 7 - Then STRAIGHT after you have hit ok, click Edit > Fade plastic Wrap - and put it to about... 25%
9. Right, layer masking work time! Add a new layer mask via the layers palate (2nd from the left) Grab a soft brush, and then make your foreground colour black. (black hides parts and white shows them) You could also lower the opacity of the brush to about 70%. Now, working on the body isn't final, but its a very big step to get correctly!! work on this step until it looks as good as it possibly can from this one step.
(Throughout whilst i was doing it, i found that i needed to hide more of the neck from the layer behind. I also rotated the layer a little, and then made it slightly smaller)
11. This is looking... fairly positive now. I understand that the head is still slightly differently coloured to the body, so once again.. lets up that saturation! (Image > Adjustments > Hue/Saturation)
12. Looking good! :) Just some touches, we will need to make the outsides of the head a touch darker... so lets make the layer actually editable and just not the mask - click the thumbnail of the layer on the layers palate. Now, grab your paintbrush tool, use a very soft brush with a low opacity and set the blending options of the brush to multiply.
13.Your finished!! Just make the image a little smaller to lose any hard ends! (I actually played about with the image some more, i simply made a little bit of the head more visible)