Scapper needs Quality Time with Flash
For someone with this much skill in animating characters and creating effects shots, it's a wonder why you don't do this on a weekly or daily basis. I say drop whatever else you do (unless it's paying bills for the time being) and invest heavily in time spent with this program. Either devise a story or collaborate with someone else. As for trimming down file sizes, Optimize is one avenue. I suggest browsing the BBS and running a search on "file size" or "filesize". People probably found some tricks online.
This stuff is polished. An appropriate sense of design but, like you said, it's a bunch of scraps and not interesting by themselves. If you worked at it, you might pummel the shit out of the regulars around here.