Aperture and depth-of-field comparison photography reference

Create a cinematic photography reference image showing the effect of aperture on depth of field. The composition is divided into five horizontal stacked panels, each featuring the same young boy wearing a bright red T-shirt, standing on a rooftop terrace with buildings and railings in the background. In each panel, the boy remains in a similar medium close-up portrait framing, while the background blur gradually increases from top to bottom. Add a small white camera aperture icon and aperture text on the left side of each panel: f/16, f/11, f/5.6, f/4.0 and f/1.2. The top panel at f/16 should have the sharpest background with deep focus. The second panel at f/11 should show slightly softer background detail. The third panel at f/5.6 should show moderate blur. The fourth panel at f/4.0 should have strong background separation. The final panel at f/1.2 should show very shallow depth of field with creamy bokeh and a sharply focused face. Use soft natural daylight, warm cinematic color grading, realistic lens behavior, subtle film grain, documentary style portrait photography, clean educational layout, vertical poster format, realistic rooftop environment, professional camera depth of field comparison. Make the aspect ratio 16:9