Thanks for all your comments,
Just to reply to a few of them, All trees/shrubs are "photoshopped" and with the exception of the foreground tree are all from got3d.com
I do have problems adding a really convincing tree to my renders, especially when placed in such a prominent position. As for Baldricks comment regarding the rainwater pip, I hadn't noticed that before, and cheers it's beginning to bug me now as well!!
I take the points about converging verticals, but I kind of like them, personal taste I guess. Agree about the "dark" car, and one more thing, Wad, are the peeps really overscaled?
cheers