Hmm a few points. You did an alright job at placing your objects and what not but the camera angles are atrocious I'm sorry to say. As you'll hear from everyone the WC3 base textures are horrible. Not something you want to exploit. You zoomed in pretty close to some things showing the stretching and over all bad textures.
Also in the first one you can see the storm-a-sphere, I believe, at an end right on the hero's head.
Along with lighting it is quite strange. It seemed extremely unrealistic. However I won't go into depth of that since I'm not all that grand with lighting. If Void takes a look at this I'm sure he'll give you some worth while tips.
Anyways good try, hope to see you update these or make more in the future.