This should get you started.
viewtopic.php?f=11&t=45762Don't look at the individual techniques of those tutorials, rather look at the way the the sigs are laid out. the background is no where near as important as the focal, in this case the Transformer. There is very little that your particular background adds that we cant figure out from the focal to begin with so it is not necessary to have such a detailed and large background.
Good luck! Keep at it!