Thanks! I am a painter and artist myself (one day I might brave up to do a panda post about my work, heh). Its just...plastic wrap as a medium... it would deteriorate fast even if he takes it down, and still create more plastic trash. I get the idea of letting go of one's creations, like sand mandalas. Its the trash I dont like much. But, till we all stop using plastic bags I guess I cant say much more than that.