This is also in Loomis on my way to class. My reasoning for tension here is that one poster overcomes the other and not only creates tension between the posters, but also tension for the viewer. The posters themselves are in a sort of 'fight' for viewer attention. The viewer feels tension because they can't see what's underneath the other poster. While walking I actually stopped and looked underneath the top poster because I was curious to what it was and it annoyed me that what was there was covered up.