Create a detailed pencil drawing of a battle between Khal Drogo and Gregor Clegane (The Mountain) from Game of Thrones. Khal Drogo should be depicted with his iconic long, braided hair and Dothraki warrior attire, while Gregor Clegane should be fully armored, including a helmet, and wielding a large longsword. The overall style should be realistic and detailed, emphasizing the contrast between the two warriors. Format: 4:5.