I'm not familiar with this flower, but I like it. Slightly off-center composition works well. Center looks great and the clearly defined fibers on the sepals add interest. The almost-but-not-quite-sharp petals at the back feel like a near miss to me (the soft petals coming towards us don't bother me at all); I think if you burn them a bit so they are not brighter than the others they wouldn't draw the eye--an easy way to improve an already successful image (if you agree).
I like the image as presented and I accept your intention of having limited DOF. It works but purely from a personal aspect I think I would have gone for more DOF, the exposure and colours are excellent.
Thanks for the helpful comments! I see how increased DOF would have improved this image since my eyes go to those back petals pretty quickly and they are not in focus. This would be an opportunity to experiment with a stacked focus image.
Bob, I also liked that one out of place petal and concentrated on getting that in focus, ignoring the back petals.