you made the garage 
the blue is a bit weird if you want to send me the scene file i can take a look at it for you. dave@simplymay.com
As for the ivy try the two sided material in vray for the leaves this will give them just a little translucency.
Looking good so far it's a nice scene to practice your texturing and lighting on.
David
From a readers' Q and A column in TV GUIDE: "If we get involved in a nuclear war, would the electromagnetic pulses from exploding bombs damage my videotapes?"