Such a nice placement, i can feel the heat bubbling out of the fabric. I agree the no swimming sighn needs to be a bit bigger, no need for the text even just the icon on a bigger sign....even a helicopter dangling a no swimming sign while a bunch of kids are cannonballing into the lava and playing with ab each ball in it, not at all scarred or dying from the intense heat.
About my design
5 colors on chocolate.
Bigger on my flickr