The Emperor is represented here by Rumble. This is something of an unusual choice, admittedly, as the Emperor is usually a more mature man, but I felt that Rumble represented the authority and stern will associated with this card. Reversed, the card can represent domination and inflexibility, or a lack of control.

The ankh represents life, and the orb represents the world -- the Emperor holds dominion over both. The high mountains and armor represent protection, but also emotional barriers. However, the river that runs through the mountain suggests these barriers are not as total or impassible as they may first appear.