Detailed coloring book illustration in a realistic style, focusing on the face of a construction worker inside an excavator cab. The worker is smiling warmly, wearing a hard hat and safety glasses, with visible facial features that convey a sense of pride and satisfaction in his work. The background shows a hint of the excavator's controls and window frame, with a glimpse of the earthworks landscape outside. Fine details capture the worker’s facial expression, helmet, and uniform, set against a backdrop of open land and ongoing construction, emphasizing the positive side of the job. --ar 70:99