First off, always try to include some info about the shot in the Photographer's Comments section. It really helps out when we know what the photographer was thinking and what equipment/lighting/etc. were used, especially when you request a critique.
Camera Work/Technical: Nicely done, though the image seems to have a slight tilt to it. The focus seems right, though it looks like noise reduction was over-utilized.
Lighting: You must have had some really bright light to shoot this at f/19 and ISO 100. I do like the highlights and reflections that you caught here.
Composition/Content: The composition is interesting, but I think the image suffered from commonality, thus hurting your score. These are done too much on here, and I cannot imagine that these can be made with any original ideas anymore.
My Opinion: 6 is a very generous score for this type of shot, but this is my opinion only. I think that these shots are overdone here, thus scoring them with any type of strong score is difficult.
Might have been good to make the top of the blue ribbon target in the background rounded white to echo the planned roundness of water drops. Despite all the threads grumbling about water drop shots, this will probably score well, but I don't predict a blue ribbon. Not voting, just commenting.
Well, I really hope this is a ribbon winner. I am voting it a 10..however, I am going to click the 'rules violation' button.
If you didn't break any rules...take this as a supreme compliment. I am just awed that this could be done SO CLEARLY and beutifully without going around the rules.