The anatomy and lightning might be off, but they are still scary, so you successfully gave it that effect👍✨ I gave your drawing more contrast so the character would stand out more. Remember if the light is hitting the front of the creature the door would also cast a shadow. I gave it all fingers to make it more anatomically correct, but 3 can still work . I also added some texture to the drawing to give it a more creepy atmosphere. I hope my feedback was helpful :) | Artwod Feedback