MidJourney provides an impressive capability to control character age and details with its AI-driven image generation. By crafting specific prompts, you can ensure the character's age and other attributes are perfectly represented in your design. This is a powerful tool for those in creative fields like filmmaking, game design, or art direction.

1. Start with a Clear Vision: Before crafting your prompt, think about the age and other key attributes of the character. MidJourney is sensitive to every detail, so clarity in your prompt will ensure you get the desired results.

2. Be Precise with Age: You can specify the exact age of your character by including it in the prompt. The more specific you are, the better MidJourney will understand and generate the desired output. For example, to generate an image of a 10-year-old girl, use a clear age marker in your description.

3. Describe Physical Features and Context: Alongside age, you can further detail the character’s ethnicity, hair color, or other key physical features. In the example below, we describe a Scandinavian woman at the age of 20. You can specify lighting, mood, and the cinematic quality as well, which influences the artistic style and feel.

4. Leverage Camera and Film Details: Adding details about the camera or film type, such as "shot on Kodak Portra 800," brings a vintage or specific photographic quality to the image, making it look authentic.