Create a black and white simplistic coloring page featuring a charming Halloween scene filled with cute adorable cartoon little monsters. The focus should be on creating a coloring book for kids, with cute and playful imagery. The style should remain cartoonish and fun, with clear black lines against a white background. Remember, there should be no color in the image, allowing children to use their creativity to bring the scene to life with their own choice of colors. --ar 2:3