手绘卡通风老爷爷退休老人托腮沉思插画素材

cartoon style illustration, elderly man wearing blue vest and white shirt, wearing glasses, serious expression, hand on mouth, as if coughing or thinking, light blue background, blue, white, and gray color scheme, modern and clean, detailed and vivid, thoughtful atmosphere, Illustrations, hand drawn materials, high-quality, clear strokes, high details