I like that Guinenss one. The one suggestion I'd make is maybe to try and make more of a feature of the foam colour - maybe the bumpers or a simple decal overlay (or both!).
Oh, and people will tell you that the text on the spoiler is upside down, but I don't think it matters that much
And no, I don't like skins that have fake lights and crap on them either. But that's okay, because they'll all become pointless when the real lights start working properly!