Let's start with Geri's abdomen and the skulls artwork, just drag the image over her abdomen and apply a mask to the skulls layer. Using the Move tool roughly place the artwork where you want it to sit, using the Transform option stretch/perspective, etc. to get better placement. Mask out the areas where you have any overlap, return to the Move tool if need be and Transform it to your liking using its different settings, I ended up with this. Some people have used displacement maps to align tattoos, not once have I required them.All you have to do next is click on the image thumbnail in the layers palette and alter the blend mode from Normal to Multiply. Simple as pie! because most flash artwork is on a white background selecting Multiply will cause the white background to instantly disappear,leaving you with the coloured or in this case black artwork blended to Geri's abdomen. Tattos are never a solid black so tweaking the layers, colour balance and lowering the opacity makes for a very realistic effect.