Semi-realistic, a man in his 40's, a smart-looking professor with brown hair with grey streaks, square glasses, faded hazel eyes, reading a book, detailed background, wearing a white button-up shirt with a tie.

A little girl holding a guitar, sitting on a large tree stump, surrounded by flowers, in anime style, warm color palette, dreamy atmosphere, flat design, cartoonish characters, detailed background elements, vector illustration from Behance.