Arachnaphobes Look Away Now

I saw this spider on the shed door.  Its body had a reddish metallic sheen.  Any idea what it is?  I have spent ages trying to identify it on line to no avail.  It was about an inch big. 

*I believe I have identified it.  I think it is a garden spider or 'cross' spider on account of the white cross shaped marks on its back and the oak leaf shapes on its side as is shown on the UK Safari website.  Info  here.