A digital illustration in the style of Mark Riddick, depicting a fierce leopard with claws extended, surrounded by jagged lightning bolts against a dark, stormy background. The scene features high contrast with deep blacks and stark whites, heavy line work, and intricate details. The theme blends dark fantasy and heavy metal. The atmosphere is extremely dark, menacing, and powerful. The color scheme is primarily black and white with subtle highlights of dark tones. Include elements like skulls and flames to enhance the heavy metal aesthetic.