Suk, is that one of the "flatter" marigolds, or one of the "fatter" ones with a bit more depth to them? It really doesn't matter all that much, I only ask because you've got the depth of field just about perfect in that shot, and I was curious how deep the in-focus area is in that picture...
Gotta love the way the color "pops", too. Nice complimentary colors there!