I don’t see the G at all, and I think many would agree.
The image that MF_Grin made was decent too, goes better with the ツ symbol that is being used often for the currency.
My concern with the current is that the G is not apparent, and it kind of looks like a evil type of smile. From a branding and marketing perspective, that may set bad impressions to new users about the intentions of this privacy related project.
That’s why I think it would be better to change it the logo to a neutral smiley.