I would really hope that you plan on putting a goblin in there, and adding some cartoony dimensions to it. Right now it looks kinda serious with the color scheme, and the dimensions. They're all practical and realistic, those two things don;t blend well with Warcraft.
Its engine could have a lot of pipes and smoke going out from them. And it would also be good if you put it a quite long nose and on it put the airscrew. Maybe some guns will fit as well.