Hello , so I watched all of these cinematics and I have a few thoughts:
Terraining could be improved a lot, it's a cinematic after all. You can find some help here or here.
About the story, undead should have some reason to attack the elves, it would make things more interesting, maybe something like using the Sunwell to summon a powerful demon. And why do forest trolls suddenly decide to help elves, aren't they sworn enemies? I think both races have too much pride to forget about everything between them, even in front of big and scary undead and that makes space for another plot you can think of yourself.
You should also put these maps together into a campaign and make them load one after another.
Terraining could be improved a lot, it's a cinematic after all. You can find some help here or here.
About the story, undead should have some reason to attack the elves, it would make things more interesting, maybe something like using the Sunwell to summon a powerful demon. And why do forest trolls suddenly decide to help elves, aren't they sworn enemies? I think both races have too much pride to forget about everything between them, even in front of big and scary undead and that makes space for another plot you can think of yourself.
You should also put these maps together into a campaign and make them load one after another.