The task of organizing and naming your sketches is a great work of self-analysis. By curating yourself the art becomes more comprehensible to the viewer. In addition, the act of analyzing your past work will enable you to present a cohesive narrative context for your upcoming show. Bravo!
Thanks... i must say though, most of the naming is fairly arbitrary - often the first word that pops into my head when saving a file. For instance, I called a couple of images some variation on "lobster." I haven't drawn a single one. The word was just stuck in my head.