I heard from fan account on their last fanmeeting, yoochun mentioned that a fan made a wall paper of junsu playing soccer, made him thinking that Junsu is a real soccer player.
when reading it I was thinking could it be that he saw your artwork. *excited*
just in case you haven't read it :
YC: Recently, I’ve been preparing for the concert and we’ve prepared new songs..oh…that… we went to watch Junsu’s musical once and saw that he played soccer through the internet and there’s this fan who watched Junsu played and made a wallpaper out of it… thinking that he’s a soccer player.
and this is the link : [link]