we also possess two different portraits painted of him in amsterdam , one by franz hals , done expressly for roemer franz , our director of the period , showing petyr to be a tall , fair-haired youth -of almost nordic height and blondness - with an oval face , prominent nose , a high forehead , and large inquisitive eyes ; and the other , dated some twenty years later and painted by thomas de keyser , reveals a heavier build and a fuller face , though still distinctly narrow , with a neatly trimmed mustache and beard and long curling blond hair beneath a large-brimmed black hat .