Prompt: a cherub robotic mech warrior sits alone, digital painting, inspired by H.R. Giger and Simon Stålenhag, surrealism, biomechanical details, ominous lighting, face obscured in shadow, rusted cherub wings, cogs and gears grind mechanically, grimy talons grip sword hilt, tattered robes flow in chill breeze, standing vigil through dusk, decaying guardian watching over a forgotten place, a somber and lonely scene