You said you want feedback.
There are a ton of issues in this flash to address but first I want to say that it's nice to see someone putting forth a lot of time and effort into something they enjoy. You have the drive, and potential and to expand on that, you have to practice on your anatomy and study from life. Not from anime.
Create anime style all you want, I'm just saying that the fact that you've only drawn anime all your life shows big time. You don't feel the 3 dimensions of the characters because you can't see the characteristics of light and shadow and how they form a character. Anime also tends to cause animators to have stiff motions rather than flowing motions because it's so analytical of exactly how people move. You have to learn how to exaggerate how you work. Draw from life often for study and fall back on anime for fun. Animate a character in a really exaggerated motion with strong poses and silhouette and the stiffer more regulated movements will become easier and notably stronger. Study different cloths for clothes. Leather, bedsheets, t-shirts, how do they react to certain movements and pressure points. All you have to do to improve is observe life around you and practice. Great effort, you have lots of potential and determination.