I'm all for a good DOF picture and this IS one - but by blurring the one in front of the flower as well, it blurs the stem of this one too much for my tastes....also, why not a bit of a closer crop to get rid of a bit of the green?
Moving the subject off center would improve composition and perhaps change the perspective so that the out-of-focus flower in the foreground is not obscurring your subject.
That is a real shallow DOF you've brought in here, the plant is very sharp. Except for the part at the right bottom which disturbs in a way. Cool blues and whites, good job.