Very nice and serene capture. In my personal opinion, it would have been more effective to use a wider tonal range and more contrast, and not have kept the flowers in color. If color is kept, I would have gone for a softer, paler color.
I am making two passes on this Challenge. I will vote on your photo then return later(before voting is over) to comment on what I like and dislike about your shot. You can take the comments however you wish and I will try not to be mean. Just don't take it the wrong way.
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I like the fact that you left the red. It really makes the flowers pop. Maybe a little more foreground would help this shot out.