8/10... I'm a tard. I think I was overthinking it (the bolt looks totally real so it must be CG because the photos of real things will probably look at least a little fake because they are trying to fake me out)
7/10... they all looked CG to me! Edit: 10/10 on the second try - I woulda got 10/10 first time round but I didn't realise you could click on the thumbnails to get a larger image! Doh! 4/4 on the bonus round too, but that was easy.