Craft an 8K resolution anime illustration, deeply inspired by the artistic elegance of John Singer Sargent. The subject is a man, styled in a manner evocative of the iconic Gatsby. This illustration should blend the nuanced brushwork and rich color palette characteristic of Sargent's style with the distinct, expressive features and vibrant aesthetics of anime art. The man, exuding the charm and sophistication of Gatsby, should be portrayed with a subtle complexity, capturing the essence of Sargent's ability to convey character and emotion through facial expressions and posture. Pay special attention to the attire, reflecting the lavish, yet tastefully elegant fashion of the Roaring Twenties, infused with a modern anime twist. The background should mirror the opulence and grandeur typical of a Gatsby-esque setting, perhaps a lavish party or a luxurious estate, rendered with Sargent's keen eye for detail and light. Yet, it should also incorporate the exaggerated and dynamic elements of anime, creating a unique fusion that celebrates both artistic styles. The overall composition should be a masterclass in visual storytelling, with each element from the character's expression to the surroundings contributing to a narrative that's rich in detail and steeped in an ambiance that is both nostalgically classic and refreshingly contemporary.