Sorry, that's what sometimes happens if you answer EF stuff during lunchbreak at work ... I totally missed the little word "not". There is no single contact address for "general" Art at Eurofurence. Usually, if one of the teams needs artwork, they'll go off and look out for artists on their own. We used to have a "contributing artists" board here in the forum, but it was such an utter failure that it was removed
I think a good tip would be the decoration team, they make all the signposts, banners and lots of other fine things. Another team always looking for contributions is of course the charity team. Also, the "daily eurofurence" team is looking for illustrations and cartoons they can put into their daily publications. Apart from those ... there simply isn't much artwork being used for eurofurence outside the conbook.