Prompt
Generate a realistic portrait of William H. Brewer, an American botanist and educator, in a 19th-century style. He should be depicted as a mature man with a gentle expression, wearing formal attire typical of the era, possibly with a botanical or academic setting in the background, such as a garden, a library, or a university office. Incorporate subtle hints of his contributions to botany and agriculture, such as a book or a plant specimen in his hand. The color palette should be muted, with earthy tones that reflect his connection to the natural world.
