That was amazing...
Just the sheer amount of effort and time you must have put into that just amazes me.
The only thing I will say is that, with drawing, people are always judging your artwork, and in many cases the entire flash will only look as good as the weakest drawing. Originality managed to make up for some of the less spectacular (still good, but just not astounding) drawings, and this might be something to look out for next time - a drawn flash won't be as innovative next time, and so you really are going to have to pull some amazing shit out the bag to top this one.
Good luck with that, though,