Hi ArtozDesigns,
I do like #25 very much, the composition of island and plants is great. I appreciate you thinking about its use as a pin, but we will be using the design on a shirt. Without changing the elements, it is possible if you could incorporate an abstract plant motif in the background instead of a circle or square? Some of our team like the pot in 5, and 6, while others do not, but we like that you are bringing in an abstract concept like the pot to convey the botanical aspects of the event.