Create a 2D drawing that goes against my preferences. I want a subdued and monochromatic composition featuring a realistic dog on a dark background. Use muted and neutral colors, focusing on shades of gray and brown to depict the dog's fur. Avoid any bright or vibrant colors that might draw attention. The background should be a deep, dark color to create a somber atmosphere. Please avoid any elements that might be considered extravagant or eye-catching in this drawing