Why don't you cut him some slack? some of his shop is clearly Holden (wheels for instance) and the front looks nothing like a Porsche, therefore it can only be a Holden(plus can you not see "SS" on the side?). So what's the problem?
I think that mine's no different than when people (Stevie, PR) do full front conversions, they look kick ass. I've never won a contest before, go easy.