Hi Mustafa,
Thank you for this entry - it looks great. I really like how you accented the name with the slightly larger 97 in entry #4 and I really like the Icon in entry #3 - if those elements could be combined into a single entry, I believe it would strength the logo. Also, I would prefer to see green included as well - not attempting to limit creative expression, my target audience really responds to green.
Thanks again for the submission and I hope this feedback is useful.
All the best...