We are doing a soft rollout of the new branding (because we are a transparent community). So I am happy for you to update twitter when you have time.
Not sure what to use as a background - wonder if the “crowd” shot at foss4ge with everyone pointing could work - if you line it up so they are all pointing at the profile picture. https://flic.kr/p/VJTkJe (perhaps flip it horizontally first and crop?
That is a silly idea but may be fun, a better idea may just be some pretty cartography