Haunted Parlour Octopus in Oil Painting

An eerie oil painting of an octopus in a haunted house parlor at night. Thick impasto brushstrokes on a weathered canvas. Moonlight streams through a cracked window, casting long, icy shadows across a dusty room with a grand piano, tattered velvet curtains, cobwebs, and antique portraits. The octopus hovers in the air, its tentacles curling around furniture and chandelier, with rich suction cups catching pale highlights. Subtle supernatural glow surrounds the creature. Use a cinematic chiaroscuro palette: deep blues and greens in the shadows, warm amber candlelight, and sepia-toned highlights. Visible brushstrokes, crackled varnish, and aged canvas texture to evoke an old master painting with a surreal twist. Atmosphere should be unsettling, dreamlike, and otherworldly, as if the house itself is alive.