Prompt: "Create a dark and atmospheric scene featuring a highly skilled assassin with a mysterious aura. The assassin is cloaked in a shadowy, flowing outfit, blending into the darkness. Their face is partially obscured by a mask, revealing only piercing, cold eyes. The background is an ancient, dimly-lit alley in a dystopian city, with faint light from a flickering streetlamp casting long, eerie shadows. The assassin holds a sleek, sharp dagger, dripping with a glowing, mysterious liquid. The overall mood should be tense, with an emphasis on the assassin's deadly precision and the ominous atmosphere surrounding them