This door is huge and a deep, chestnut brown. The center of the door is adorned with a circular, brass knocker. The door is slightly cracked open, and a bright, emerald green light is coming from within. However, the door is covered in three giant, crimson handprints, encrusted with clotted blood. For this haunting and mysterious image, I would suggest painting the door a darker brown and using brighter shades of red and green for the light and handprints. To enhance the eerie atmosphere, you could use lighter shades and varying textures of grey for the shadows and the backdrop.