This is really good, and I'm really impressed that you did all of it by yourself. I love the vibe this has and how you occasionally mixed photographic material with hand-drawn backgrounds and characters. I also like the little detail of how the X-es in his eyes opened up at the end.
I hope the little guy can find his way out. I like to think him eating a sandwich sitting in a distant sunbeam with a butterfly is the movie ending on a cautiously hopeful note.