Retro 1950s-1960s sci-fi pulp illustration, cheerful handsome male space mechanic floating in outer space, wearing classic orange and gold vintage astronaut helmet, yellow shirt under blue denim overalls, brown leather tool belt with tools, holding a large shiny wrench in one hand and another tool in the other, big friendly smile, warm and optimistic expression, detailed leather tool pouch on his hip, background full of stars, sparkling nebulae, Saturn-like ringed planet, spiral galaxy and small red planet, dramatic yet warm lighting, rich saturated colors, painted texture, in the style of classic mid-century sci-fi magazine art, golden age