Here's a video from my black belt test. We had to make up a kata using various elements from our style (Shuri-Ryu Karate). The form needed work, but I was pretty proud of the application (Bunkai).
The kata itself I can see why you were not totally happy with it but its got lots of potential keep working on it you will be happy with it after a little while. However the bunkai I agree I would be very happy with it as it was quite strong.
Awesome. Although I am not familiar with your style, I saw various aspects that are practiced in my style (Uechi-ryu). I particularly enjoyed the Bunkai.
I've got to say, about 95% of kata videos I see I end up exiting after the first thirty seconds. Your techniques were solid and impressive, and I enjoyed seeing the bunkai. Good work.