Eclipse Citadel Siege with Arcane War Engines

An epic dark fantasy battle scene depicting a vast army besieging a colossal dark iron citadel during a rare black solar eclipse. The black sun is ringed by a fiery golden corona sky, casting an eerie twilight glow across a muddy battlefield littered with ancient banners and siege towers. Massive arcane catapults launch glowing magenta plasma orbs through the smoky sky, exploding against the citadel's shimmering blue magical forcefield shields. In the midground, lines of black-armored knights with glowing red visors stand alongside towering bronze mechanical golems, marching toward towering iron gates. Smoke, flying sparks, and purple lightning arcs crisscross the air. In the foreground, a military commander atop an armored war horse points a glowing broadsword toward the fortress. Captured in a ultra-wide panoramic battle shot using a 18mm lens, sweeping scale, atmospheric depth haze, gritty cinematic action art style, high contrast dark fantasy concept art, inspired by Warhammer and Lord of the Rings.