Eren Yeager, muscular man, blonde hair, blue eyes, strong jawline, relaxed posture, sitting on a beach towel, Hawaiian shirt, ripped jeans, flip flops, sunglasses, holding a surfboard, calm sea, clear turquoise water, soft white sand, sunny day, few seagulls flying overhead, palm trees swaying in the distance, warm sunlight casting long shadows, shallow depth of field, cinematic composition, vibrant colors, atmospheric haze.