Nathan (@nathanestrin) - Collective Profile | Chicago, US product engineer. Follow @nathanestrin on Instagram. Recent posts: a man wearing a white t-shirt, cargo pants, and a baseball cap poses indoors in a lounge area with large windows overlooking a city at dusk., a man takes a mirror selfie in a locker room, shirtless and wrapped in a towel. the photo highlights his muscular physique., a man stands shirtless in a locker room, a towel wrapped around his waist. the photo focuses on his muscular chest and torso., an abstract sculpture with smooth, flowing shapes and a minimalist aesthetic. the artwork is predominantly white, creating a sense of calm and sophistication., a man takes a mirror selfie in a gym locker room. he is wearing a black shirt and gray sweatpants, and has headphones on., a man poses for a selfie on a rooftop at night. he is wearing a yellow shirt and has a mustache., an upward view of a staircase with a skylight at the top. the design features geometric patterns and a play of light and shadow., a man takes a mirror selfie, shirtless under a black shirt. the photo is taken in croatia., a shirtless man takes a mirror selfie, showcasing his muscular physique. the image highlights his back and shoulders, emphasizing his fitness efforts., a man with dark, short hair takes a selfie outdoors at night. he is wearing a dark, collared shirt with buttons., two bronze sculptures of women sitting on a bench. the sculptures are stylized and modern, with a minimalist aesthetic., a sleek black porsche parked on a city street. the car is a classic model, reflecting the sunlight., a man poses shirtless in the sun. he is wearing swim trunks and appears to be on vacation., a vintage collage of monochrome photographs. the images feature abstract shapes and forms, creating a unique and artistic aesthetic., a man is seen from the back, shirtless, showcasing his muscular physique. he's wearing a cap and jeans., .