Treat the generated prompt as an editable brief. First, compare the subject and environment with the reference. Remove uncertain details, correct mistaken objects, and decide which visual characteristics you want to keep. Do not preserve every observation simply because it appears in the output. A focused brief helps a collaborator or generator understand your priorities.
Next, make the action sequence consistent. A subject should not change clothing, position, or appearance without a reason. If the prompt contains several camera movements, simplify them into one deliberate progression. Separate what the subject does from what the camera does, and make sure lighting instructions describe a compatible setup rather than several conflicting looks.
Finally, set duration, aspect ratio, resolution, and other supported controls in your chosen video generator. Some models work best with short prompts; others accept more detailed direction. Generate a small test, inspect the result, and adjust one major variable at a time. This makes it easier to learn which instruction caused a useful change.