Hi, well, now that you already have your own idea, I recommend you to hire a group of experts in order to improve it with experts advices. I think that, at this point, this is the best solution for you, or the next step. I have heard that there are some good enterprises that have enough tools for helping you to have a great logo. Bye
You need some more distinction between the background colour, leaf image and text colour. Try incorporating a different colour for the background blues, yellows or browns would all go with the green.