Come on AlbioFan, this was started over yours, put the football back, and we'll politely ask anyone else (227BHA) who has taken yours to change to something else.
Not sure if there is a ruling on this one, but I am interested to get the consensus of opinion.
I believe the Avatar to be your own. Something that you like, worship (in the case of Artois and Chapman), represents you or you just find amusing.
Whatever you reasoning for choosing it, surely...