"A highly detailed portrait illustration of a 27 years old Japanese man with medium-length, wavy black hair framing his face. His expression is calm yet intense, with a slightly enigmatic gaze that adds depth to his character. His facial features should be well-defined, emphasizing his strong jawline and smooth complexion. Please note that the illustration should not include any facial hair, presenting a clean-shaven look to emphasize the softness and clarity of his facial features. The background should be simple and neutral, such as a soft gradient in gray or beige, allowing the character’s features to stand out clearly. The lighting is natural, with soft highlights and shadows that add depth and realism, creating a sense of dimension in his facial structure and hair texture. The colors should be balanced and subtle, maintaining a natural palette while adding artistic flair through digital painting techniques. Focus on the interplay of light and shadow, detailed rendering of hair strands, and the expressive nature of his gaze, blending realism with a stylized artistic approach typical of Niji illustrations."