I have some questions
1: How much HP will the AT-AT have?
2: How many people can fit in the AT-AT?
3: What would you do about the head of the AT-AT? The bot turrets on vehicles can spin 180 degrees and an AT-AT with it's head turned backwards looks weird.
4: Can it be colored with different colors like the AT-ST?
Speaking of the AT-ST, you should probably make it bigger than that.