Nice picture, but scale it down to a 728x90 banner and all details are lost and it looks like a mush inside a golden ring. Also, there is a contradicting message: heavy golden rings don't really go along with humanitarian slogans ("the first cryptocurrency with a humanitarian purpose"). In my opinion, we should stick with Hive account@joshoeah redesign:

https://steemit.com/gridcoin/@joshoeah/gridcoin-branding-update-1