CC: Great subject matter. In fact these look very similar to the flowers used in the third place finisher. The real difference between those two shots is in the background. When this shot opened, the first thing I saw was the checked table cloth in the background. Then I noticed the green leaves, after that I noticed the flowers, which I assume are the subject and then the wooden humming bird. The result is that the picture feels busy - I'm distracted from the subject by several things that don't feel like they belong or really add to the final result - you might try simplifying your arrangements ?
Lovely orchids! I find there is too much in this pic for some reason, my eyes keep moving all over the image and can't settle on one particular object. Maybe a shallower DOF may have blurred the background out more. Another idea would have been to put up a black (or colored) sheet of cardboard behind the orchids so you have a uniform background.
beautiful orchid... I believe the perspective you chose here could be a little stronger possible... the hummingbird model in the scene seems a bit out of place for me... - setzler