Ultra-detailed comic-book style illustration of a rugged man in a red plaid jacket over a green shirt and blue jeans standing at a busy urban crosswalk. He holds a large cardboard sign that reads "I'll be back" in bold black letters. The scene is a dense city street filled with yellow taxis, pedestrians, and towering glass skyscrapers. Use a dramatic low-angle perspective with strong ink outlines and cel-shaded colors. Add sunbeams slicing through the canyon of buildings, reflections on wet pavement, and dynamic motion in the background. Color palette warm with yellows, reds, and blues; meticulous texture on clothing and urban signage to convey a lively, cinematic atmosphere.