The Gentle Grandfather in a Scholarly Environment

Older man, wise and gentle face, short grey hair, kind blue eyes behind glasses, wearing comfortable, slightly scholarly attire (e.g., sweater vest over a collared shirt), possibly holding an old book or with bookshelves in the background, Pokémon anime art style, full body. (Highlights his academic background and gentle nature) full body view, five fingers, standing, in the library inside a building background, detailed clothing, details face features, detailed eyes, grandfather, show lower half of the body