Ancient crooked wizard castle perched on a mountain cliff

A detailed charcoal sketch of an ancient wicked and crooked Medieval wizard's Castle resting on a cliff of a majestic mountain. The castle is warped and crooked and is showing eons of wear. There are strage looking evil creatures flying about the evil castle. The technique is thin charcoal for exacting lines blended with shades of charcoal shading to create a magnifient black and white charcoal image of the ancient castle