I had a little go for the first time with the GIMP program [which is free to download], the background was originally a photo of a big brown toad! The lizard was one of my older drawings which I placed on top. I can't remember what I did exactly as I was just messing about but there were 14 layers. I also wanted to get rid of the grey area round the edge but it wanted to remove other parts to so I left it. I've a lot to learn but I do like the resulting background.
