Not that great
It's good that you can acknowledge your earlier work as not being great, and also that you submitted it here for people to see. It's good to see how a flash artist gets started, and to see their progression as the years go by and they manage to hone their skills. I can even see some improvements in the this entry alone, between Episode 1 and Episode 5. It shows you were working as hard as you could at the time, but obivously still weren't quite skilled enough to make it great.
The first two entries i thought were almost entirely dire and forgettable. Really. The thrid I actually quite anjoyed, you'd shown some improvement and it just seemed to make more sense, well as much sense as a living rubber can be! I thought episode 4 was a real step down in terms of story, I mean just ripping off Happy Tree Friends? but again showed an improvement in your animation skills. Episode 5 was actually quite a good episode for the most part, nice song and again an escalation of your skills.
Good to see your humble beginnings, but on a whole... they're not so great.