Please create a prompt for Stable Diffusion for a portrait of a man who is about 20 years old.
Portrait of a man by Greg Rutkowski, he is about 20 years old, british features, straight jaw, attractive, short brown hair with bangs, athletic and strong, gallant, childhood friend vibes, he is wearing red and black utilitarian jumpsuit, highly detailed portrait, digital painting, artstation, concept art, smooth, sharp foccus ilustration, Artstation HQ.