Heroic Mouse Battles Feline Dragon Monster

A dynamic fantasy illustration of a giant monster and a tiny mouse hero. The monster, resembling a black feline dragon with large bat-like wings and golden horns, roars ferociously, its yellow eyes glowing. A small, armored mouse hero, wielding a massive bone greatsword, leaps heroically from the monster's wing towards the viewer. The background features a desolate, rocky landscape with ancient ruins under a cloudy sky, with dust and debris flying around. The art style is detailed digital painting, evoking a sense of epic fantasy. The lighting is bright and dramatic, enhancing the fierce action. The colors are muted earth tones, browns, grays, and blues, with vibrant yellow accents in the monster's eyes. The atmosphere is intense and adventurous.