Steampunk bartender, mature man, muscular arms, intricate mechanical limb, leather-bound apron, brass goggles, top hat, handlebar mustache, vest with copper buttons, worn denim jeans, brown leather boots, standing behind wooden counter, polishing metal mug, intricate clockwork machinery, vintage-style posters, dimly lit tavern, foggy windows, London-inspired architecture, warm golden lighting, shallow depth of field.