It certainly makes for a nice avatar. I only would trace it and repaint the yellow, it is slightly washed out. This reminds me about the early grin logo discussion, so many cool designs passed the revue.
Warning, it is a very long post to load. For the fun I uploaded the original logo with the various logo parts, what these parts could symbolize, just one persons interpretation. A lot of thought went into the logo and I do not think we need to change it, but it is fun to use variations for various purposes. E.g. The Grin++ logo is seriously cool, so I put a sticker of it on my laptop. Also the Grin Community council logo’s (there are two of them) are quite nice. See here the original discussion on the logo for a trip through Diagon Alley 
, ugh, I mean a trip through memory lane:
