a teenage boy stands on the threshold of an open door

50s 60s adult art attractive back background beautiful beginning body boy career cartoon casual caucasian child childhood choice college comic concept cute daredevil door education full fun guy handsome happiness happy illustration innovator inventor jeans kid kitsch learn limit male man one open path people person pop portrait posing rear retro school schoolboy shirt smile solution stand standing student study studying style teen teenage teenager threshold unknown view vintage visitor white young youth