Is this the effect your going for? Just make a free standing copy of your model and past it in the background pic (mines the flowers). CTRL-left click on your model in the layers pallet to select it (the walking ants line), then left click the background layer and make a copy in the form of your model ( lets call it bodypaint). Left click on bodypaint in the layers pallet and drag it over your model. Select bodypaint and in the layers pallet where you see normal select color burn. Now all have to do (if you want) is to add some drop shadow. if you need anymore help (like what the hell im talking about) just call , hope it helps