Schoolboy with smiling happy face with copy space. Pupil with a backpack and textbooks. Back to school. Isolate schoolkid, positive, fun, caucasian, cheerful, schoolchildren, expression, emotion, happy, schoolboy, face, book, pupil, background, primary, study, boy, childhood, backpack, education, elementary, opened, mouth, clever, emotion, one, white, wow, , surprised, shock, smile