Looking forward to it.
This looks like an interesting game with a plot that I could get behind.
I do have several small things I would like to bring to your attention though.
The characters though, while I love the way you drew their armor, their faces could use some attention. Maybe post a question on the forums to see if anyone there would be willing to draw the faces on your characters.
several things to keep in mind when animating.
Firstly, for every push there is a pull. if a character lifts their right arm out to the side they are going to lean slightly to the left for balance. Its little things like this that that make characters more lifelike and can really help with subtly when there is a really intense moment going on.
Secondly, don't forget about the smaller joints. I can foresee this being a bit of a problem for how you've built the characters. Don't neglect the character's wrists, ankles, neck, hips, and waist when determining how they move. Also, you may want to look up a youtube video of a horse running so you can get a better feel for the rocking motion that creature creates when it moves.
Another thing is to remember that different body parts can move at different speeds at different times. Walking is a perpetual cycle of falling and catching yourself. its never ever smooth.
Lastly, characters have a sense of weight. If a character falls from a great height and lands on his feet, he will bend his knees down quickly to slow his fall, and then slowly straighten them. This sense of impact will bring your characters to life and really make them pop off the screen.
I hope this helps.