Create a highly realistic and emotionally engaging image of a man between 30 and 40 years old, with slightly graying hair, sitting on the soft, white sand of a pristine beach. He is dressed in a white button-down shirt, brown pants, and black shoes, with a relaxed yet reflective expression. Beside him is an open black briefcase, with several papers slightly lifted by the gentle sea breeze, as if they're trying to fly away. In the foreground, two children, his sons aged 7 and 9, are playing joyfully. The 7-year-old is focused on building a sandcastle, with small tools in his hands, creating intricate details. The 9-year-old stands at the edge of the crystal-clear blue water, his feet submerged, looking back toward his father, waving him to join them in the water. The boy’s excitement contrasts with the man’s calm demeanor, creating a heartwarming scene of family connection. The beach setting is serene, with vibrant white sand and turquoise water gently lapping at the shore. The sunlight creates soft reflections on the water, and the sky is clear with just a few wispy clouds. The overall mood should be peaceful yet lively, with the contrast between the children’s playfulness and the father’s calm presence, embodying the bond between them.