It really was short. Short isn't bad, but nothing happened either.
If you make it short, make it full of action!
For what you lose in time, make-up with intensity.
More battle scenes, blood, death, people jumping off cliffs, anything!
It really was plain and sorry to say this but... boring.
You can really improve upon this, and I know how hard it is to flash (look at my attempts), but if you try hard and enough, and be patient enough, even the smallest plants will bear fruit.
Thanks for reading!