Thanks for the great designs. You got close to what I was after almost straight away - hence the good ranking. #7 is a bit too complex as I prefer simpler, cleaner logos. The leaf on the others is not quite right and could perhaps be dropped but the words are great. One concern with using stereotypical green images is that it can put off some corporates as it may give the impression of being 'too fluffy'. Hope this helps.
Thank you very much for your feedback. Here is some update in accordance with the input from you If there is other input to refine my entries, please let me know. I very happy to improve it.. ;) Thank you.