Prompt Fundamentals for Image Generation By the end of this lesson, students should be able to: Common prompt issues and their causes. Wrong style: art style descriptor missing or overridden by stronger style cues. Wrong mood/atmosphere: lighting or mood descriptor absent or too weak. Subject not matching intent: subject description too vague or conflicts with style. Unwanted elements: common associations of a word or phrase adding content not intended. Composition unexpected: no camera direction or framing descriptor to guide composition. Diagnosing before iterating. Before changing the prompt, look at the generation result and identify specifically what is wrong: is the style wrong, the subject wrong, the atmosphere wrong, or the composition wrong? The diagnosis should match the fix – changing the art style descriptor when the problem is the lighting direction wastes an iteration. Iteration targeting. Match the change to the diagnosis: wrong style -> change or add the art style descriptor; wrong mood -> change lighting and mood descriptors; unwanted element -> add specific exclusion language or be more explicit about what should NOT be present; wrong composition -> add framing and camera direction language. When to abandon vs. iterate. Sometimes a prompt direction fundamentally conflicts with the intended image – the combination of style, subject, and setting doesn't produce results in the right direction after 3-4 iterations. In these cases, rebuilding the prompt from a different conceptual starting point is more efficient than continuing to iterate on a direction that isn't working. Enroll to continue this lesson. The preview above shows the lesson objectives and opening lesson content. Enroll to view the full lesson, complete the practice work, and take the lesson quiz.
Lesson 3: Diagnosing Prompt Issues and Iteration Strategy
Lesson Objectives
Lesson Content
