The Artwork is Epic and so as the Music... Thumbs Up!

It is barely an animation at all, but you have done the best you can to develop it into something to watch through the video, using the zoom effectively to show the incredible detail of the picture and the sketching as well, which successfully adds interest and motion.

I rarely give as high as 6/10 for something which is basically a picture, but you have shown how appropriate good music etc, can make such a video worth watching.

As for the picture itself, I congratulate the artist. Such action and such detail !
Slightly let down IMO by the archer who doesn't really look like she is actually in a battle at all, unlike her comrades. Perhaps you were intending her to be aloof from the battle etc, but if so, I think that went a bit too far. May I suggest watching archery in motion. Too many films show people, especially women, flicking off arrows like it was effortless. Piercing the enemy for such a slight person would be a real strain, an effort; every moment would be shooting, then straight on to the next arrow, desperately trying to take the monster down before too late.
Her stance also looks a little odd. I don't see how one can bend one leg that much without the other, whilst standing straight-try it!