Wonderful; I mow these over every time I do the lawn. I need to look around more when I'm doing ordinary things. I agree with Gina, a bit more subdued highlights might work here; I wonder about the centered composition, too; would RoT work to strengthen this already strong shot even more?
I love the DOF sharp in the center and soft away from center, as well as the light diminishing towards the edges. It looks like the mushroom is the source of light.