If you haven't seen the lovely custom .gif animations made by fedesss in The Thread of The Animated Gifs yet, visit the forum topic now!
Age of Empires Heaven itself now has a wonderful collection of animations too - ranging from walking and battle animations to villagers gathering resources. The new page can be found under the Trade Workshop section, or just click here if you're too lazy to scroll down
Be sure to take a peek, or face the wrath of the almighty Red Ballista!