A highly detailed digital illustration of a female elf assassin with dark skin and vivid red eyes, blending elements from the styles of Dan Mumford, Peter Mohrbacher, and Greg Rutkowski. This fantasy character stands poised in an ethereal, mystical setting. The scene is rendered in 4k, showcasing a rich color palette and intricate textures that capture the character's stealthy and enigmatic nature. The artwork features sharp, clean lines and an attention to detail that surpasses ordinary depictions, with a visually arresting composition that would be trending on Artstation for its exceptional quality. The background subtly enhances the focus on the elf while incorporating fantasy elements that harmonize with her presence, all presented in high resolution with a touch of atmospheric lighting to emphasize her otherworldly elegance.