A Demo Reel is not easy to do. A Demo Reel is not something you throw together and say "I'm done". As long as you remain in this business, your reel is an ever changing living breathing calling card that needs feeding & watering on a regular basis to grow. Cut away the dead parts regularly so the new life can grow.
...that said
From a Design standpoint, I liked it very much. I love the text treatments / fonts / subtle animations...that you didn't try to go overboard and cheesy. Very cinematic & strong. You let the content do the talking. The content is great stuff. Also like the Aspect Ratio of the Reel. I am not a judge of an "Editor's Reel" as far as storytelling because it's multiple stories in a soup. As a Designer I Look at the big picture presentation and I think you pulled it off nicely.
Bravo.
...now keep updating it on a regular basis and don't let it get stale
When life gives you dilemmas...make dilemmanade.