Thank you very much for your entry. I like what you have done with the different greens over the 'i's. The icon part, though is not only a little too similar to one of the other designers concepts, but also too angular for my liking. I would prefer something a little softer looking and more friends and inviting.
I have just posted some more updates to the brief. Please could you take a look at these so that you can revise your designs accordingly.