The Grineer Galleon is a massive, industrial spacecraft characterized by its rugged, utilitarian design and heavily armored exterior. Its structure is angular and asymmetrical, with a mix of smooth and heavily textured surfaces, featuring exposed piping, reinforced plating, and Grineer insignias. The color scheme is predominantly dark metallic with rusted accents, giving it a weathered and battle-worn appearance, while interior sections are dimly lit with eerie green lighting, emphasizing the Grineer's militaristic and oppressive aesthetic.