I've been wanting to create it for a long time:3

Gelert Grindelwald is an enigmatic and charismatic young man with great intelligence and exceptional magical abilities. He is tall, thin, but strong, with blonde, almost white tousled hair that gives him the appearance of a rebel. Its peculiarity is heterochromia: the left eye is black, and the right is bright blue. This combination gives it a special mystery and even an unsettling charm, as if two different entities are hidden in it. His gaze is both piercing and thoughtful, with a touch of ambition and determination.

Gelert has a natural charisma, his bold ideas and visions of change fascinate others, although they frighten many. He is attracted to the idea of creating a "perfect world" where wizards will be endowed with more power, and he is not afraid to discuss these views with those who are able to understand his vision. Although he is young, there is a deep understanding of magic in his mannerisms and words, and his ambitions reach far beyond ordinary magical dreams.

In summary, Gelert Grindelwald is a young genius with a mysterious vision, ambition, and an uncompromising vision for the future that could change the magical world forever.