Yellow is the whole point. The image is about yellow. It has no other impetus other than the question about how can I use yellow and what colors can I introduce into a collection of yellow shades to maximize the yellowness of yellow. It could be a tribute to all things yellow: butter, buttercups, dandelions, certain squashes, lemons, marigolds, daisies, canaries, the sun, the leaves of the gingko in autumn.
And this little collage was just the first foray into yellow. A person could certainly pick up the yellow theme again and again in many different ways. And when even the thought of so-doing is delightful, how delightful is the actual venture likely to be? Very delightful.
As delightful as sitting in the light on a lovely, pleasant, sunny day.