My new way of deciding whether a poster is successful or not is by testing how bad my memory is. (Since I don't really follow who-does-what, forgive me for lack of designer names.) Off the top of my head, these posters are "good" to me, purely because I've remembered the band name along with the image:
• the bird/volante
• mark eitzel/shopping cart
• happy dog/beck (kozik, yeah?)
• "WATT" across mike watt's eyes/mike watt
• crow/Nick Cave
and, you know, a bunch of others. Anyway, I'll let you guys know in a few months if I think this is a good poster or not. Bate your breath!