I like the idea of the bottom up approach, but in my opinion it would have been better with a deeper DOF to get at leasst a few of the daisy petals in focus. Overall Nice photo.
I wish the petals were clearer. Seems that the stem and underside of the flower are in focus but the petals are not- maybe that was the intention. Either way the black bg does nicely with this. Reminds me of one I did.