Guilherme Castro (@umguicastro) - Collective Profile | Blumenau, BR Software Engineer. Brazilian tech gay and human rights activist Follow @umguicastro on Instagram. Recent posts: a man in black swim trunks takes a mirror selfie in a locker room. he is shirtless, showing off his abs and muscular physique., a man with dark, curly hair smiles at the camera, resting his head on his hand. he is wearing a light-colored button-up shirt and a beaded necklace., a person stands with their back to the camera, looking up at an ornate, historic building with intricate architectural details. the building appears to be a castle or palace, set against a bright blue sky., a man takes a selfie in a mirror, wearing a denim jacket and a beanie. the background features a brick wall and a bouquet of flowers., a man stands inside a vintage tram, holding a water bottle and looking out the window. the tram is filled with other passengers, suggesting a public transportation journey., a man in a black baseball cap and a denim jacket over a white t-shirt sits casually in a modern room. he wears loose-fitting light-wash jeans and black loafers, with his arms spread wide as he leans back., a young man poses in front of a wall displaying various graphic design posters. the posters feature bold typography and colorful designs, suggesting an art exhibition or gallery setting., a man takes a selfie in a gym, wearing a black tank top and shorts, with a rack of exercise balls in the background..