layers and /or and cloning tool id guess.... but you missed out one thing.... you left the easiest bit in there...the hard work (if you can call it that) was the lead the easy part is the shadow of the lead and you forgot to do that bit
Doh! Muppet. Because I had my daughter shouting at me from the bathroom. Yes clone tool... I'm old school I'm afraid and haven't read up on all this content aware hoodoo voodoo yet
i wish i had photoshop on this lappy, was on my old one... i could see this thread getting fun id have gone for the classic head swap myself...always a winner.