I managed to get it done but I'm not sure whether I've gone wrong somewhere or if it's meant to look like this:
I managed to do the layering fine in photoshop and I followed the PDF but it's turned out really dark. Anyone got any ideas where I went wrong? I don't even mind if it's something stupid and simple but I'm really confused. Being a genius, I tried to fix the problem and just made it worse so I can put the layers up that I have although they're not necessarily the same
Ambient Occlusion layer:
I'm pretty sure it's the beauty layer that's been muffed up but I really don't know how...Any ideas are much appreciated!