I've been working on this for about the past month. I wanted to practise my animation, as well as work with Flash. And while I see room for improvement for the next (likely much shorter!) animation, I'm pleased that I finished this.
This was drawn, cleaned up, and coloured in Flash. The effects and compositing were done in After effects, and then exported from Premiere. I'd love to learn more about exporting, because that took *forever*. Holy cow.