Well it's an improvement, at least...
Sonic, the biggest problem with your flashes is simple: your animations do not flow well. Heck, even the credits, of all the things in the world, doesn't even flow well. Try to make it so that the frames per second increase. In order to make your flash not look like it is going at hyper speed once you increase the frames per second, add in more frames of animation.
I will say right now that your drawing skills have improved a little. If you can, try to make the entire skater through drawing. I think the pants were taken off of google images or whatever, and at times it is noticeable.
A background would also be nice. You could probably just take a huge picture of a skatepark and then put in the flash as a background, as long as it isn't blurry.
Overall, it is improvement.