Good Practice animation!
The flash shows me that you got a lot of artistic ability, and an ear to coordinate key-parts of the music with what the viewer is watching (something a lot of people are pretty incapable of being aware of).
However, there were tiny details that just seemed to bug me.
-So the guy is basically a drunk until she (the captive) telepathically (?) put out the SOS just for him, (because I'm assuming he had the other jewel...some sort of magical connection...whatever, I'm getting off subject) and he goes from being a hopelessly depressed drunkard to, "Shit yeah, I'm going to save my girlfriend in the castle of demons with only my sword and my horse. Hyah!" ? Is he in the bar because she was captured, or was he the only guy with a jewel necklace to contact nearby?
-So he's off. Galloping gallantly to save the girl. He APPEARS to just do a dramatic pose with his horse near a cliff...if the animation were more fluid and you took just a wee-bit more time on it, you could've established that he was riding, riding, riding, couldn't really see well because of the trees, until all of a sudden they came to drop-off that could've killed the horse and him...so because they can't go on, he ditches the horse and slides down the hill to hoof it himself.
-I don't really care for bad-guy designs; goons will be goons...but at least do the fight scene with something less repetitive. If you wanted to do one or five really well-drawn dramatic poses tweened across with the Alpha on 50% or something, while you had random, each-different-from-the-last slashes and patterns of blood, that would be cool. But it was the same slash, angled differently, and when it kept on coming back to him, I felt like it was a Photoshoot, he was the model, and the slashes was the shudder closing for the camera.
-Then he's got this rival fight...the animation had almost no effort put into it...hell, and when he (somehow) in the blink of an eye wins the fight (we don't know how because it was drawings flipping and cutting out from each other) you actually put more effort into his cloak waving in the wind while he walks off in slow-motion then you did for either of the fights.
-There was at one point where the hero's running alone, it keeps switching from him running in the forest from different perspectives...you need to keep in mind how your character is positioned, because some of his body language was hilarious. His legs all awkwardly contorted, and his arms, I don't know what the hell they were trying to do...just, when you take the stills all together, and imagine them all moving from one position to the next, it looks whacky and jumbled...kinda distracted from the mood the flash was trying to give.
-At one point, he's down-stabbing a demon. At first, his hand was on the blade. The next frame, his hands were on the handle where they were supposed to be.
Okay, so what? You made a couple of easily made mistakes in animaiton, big deal, we've all been there. :D All in all, though, this shows to us all that you got tremendous potential, and in time, you will naturally get better.
Hope to see more from ya!