Hi, my name is Russell and as per your request, this is your critique.
What I liked - Great depth of field, a nice minimalist type of photograph. The many shades of green really help the contrasting colors in the flower.
What I didn't like - The softness of the subject especially the yellow center. I understand that this is a soft focus challenge but the center of the flower is more of a blob, just a touch more focus there would have made a great difference. The rain drops are a great addition, but I think the larger three kind of take away some from your subject. Lastly, there is some jagged lighter green at the top of the flower (most likely a set of leaves of some kind). As is, they are set against a much darker green and really stand out - which also takes away from the subject.
Overall, your photo scored fairly well, it may have scored better if the distractions were gone (mainly the larger drops and the light green leaves mentioned above). After looking at your portfolio, you have a great eye for this type of photography. KEEP IT UP!