Concept art, character illustration, European and American cartoons, chalkboard, solo, chalk, necktie, old, vest, book, shirt, desk, open mouth, 1boy, holding, indoors, white shirt, collared shirt, long sleeves, smile, jacket, mustache, old man, chair, male focus, red necktie, white hair, grey hair, facial hair, classroom, from above, wrinkled skin, open book, foreshortening, pen, realistic, coat, brown vest, 1girl, brown eyes, wing collar, short hair, writing, teeth, brown jacket<lora:haiwaixiuxian:0.8>,