It is unclear what the brown thing between the two fluffy green seeds are. If it is a branch, I think it should have been eliminated. If it is another type of seed with natural armor, it needs to be presented more focally. Also, this would be improved by longer DOF. I know that the shallow DOF was intentional, but my personal preference would be to have both seeds presented with sharp detail. There just isn't enough background for an artistic DOF with bokeh look here... But that is probably just me! :)
I wondered if a natural background would have been better, but then decided against it. The pure white might be unnatural for this, yet it allows me to concentrate on all the many details. Great subject! 8