My son had his bearded dragon relaxing on his head in the heat. I've increased the red and reduced the yellow in the black and white mix - the bearded dragon has a lot of orange in it so this was the best choice for my son's face and the lizard's colouring to keep the skin patterning
Oh this brings back memories. My long haired teen son used to have a bearded dragon. I miss him, he had such a great personality! Your son is smart to be wearing a hat .... if you know what I mean. Best shots I ever got of him were while he was eating strawberries.
When I was a kid our house backed onto a railway line that had lots of blade grass. We used to have lots of these come into our yard, along with the occasional frill neck lizard :)