PHPcenter

Hi there! This clinic is a really cool initiative
Now I have this project to make a logo for a new PHP portal. The brief was indeed very brief and I made some mockups to get a feeling of the direction they wanted.
Some feedback: The wording PHP is very important and should be very clear and not modified. The feeling should not be too ‘business’ or ‘cold’. Instead it should convey a ‘community’ feeling and ‘warmth’.
The result of this “indirect” research is the attached logo, and it was also accepted by the client.
Now I’d love to get some feedback from you, because I feel a lil’ bit stuck with all the different comments from people just expressing their specific taste.
What colors could communicate keywords as warmth and community and what other things could be adjusted in general to improve the logo overall.
Thanks in advance for all your comments and feedback.
Cheers from Germany!
//george