For reference, they look different again when placed on a background, and I've added a blank section below to copy and paste, if anyone wants it...
This is weird, I'm quoting myself but I need to clarify something...
The background sample I posted, was purposely larger than the size Martin specified. I did it like this, so that if somebody made a heading of the correct size (450 x 60), as shown by all of Mike's (artistmike) designs, they could drop it onto a larger section of background to get the overall effect.
Hence the reason I also included an example of a design I'd previously posted (with a transparent background), to show the difference it made when dropped onto the blue bar.
I've attached an updated version with a faint frame indicating the maximum extent of a proposed design.
Andy