Blue Caterpillars and Pink Rainbows

My darling JK was looking out his 2nd storey window from his bunk bed while waiting for his Mummy to tuck him in. Suddenly I hear him exclaim,

"Look! There are blue caterpillars in the sky!"

I wasn't quite sure what he was referring to but on further investigation I discovered a lovely sunset in motion. With a little more discussion, JK decided that there weren't only blue caterpillars but also pink rainbows. I love the way this little guy's mind works!