Update pronunciation-assessment-tool.md

Author: sally-baolian

articles/cognitive-services/Speech-Service/pronunciation-assessment-tool.md

@@ -40,8 +40,12 @@ Follow these steps to assess your pronunciation of the reference text:
 
 1. Go to **Pronunciation Assessment** in the [Speech Studio](https://aka.ms/speechstudio/pronunciationassessment).
 
+:::image type="content" source="media/pronunciation-assessment/pa.png" alt-text="Screenshot of how to go to Prounciation Assessment on Speech Studio.":::
+
 1. Choose a supported [language](language-support.md?tabs=pronunciation-assessment) that you want to evaluate the pronunciation.
 
+:::image type="content" source="media/pronunciation-assessment/pa-language.png" alt-text="Screenshot of choosing a supported language that you want to evaluate the pronunciation.":::
+
 1. Choose from the provisioned text samples, or under the **Enter your own script** label, enter your own reference text.
 
    When reading the text, you should be close to microphone to make sure the recorded voice isn't too low. 
@@ -61,9 +65,15 @@ You can also check the pronunciation assessment result in JSON. The word-level,
 
 ### Overall scores 
 
-Pronunciation Assessment evaluates three aspects of pronunciation: accuracy, fluency, and completeness. At the bottom of **Assessment result**, you can see **Pronunciation score**, **Accuracy score**, **Fluency score**, and **Completeness score**. The **Pronunciation score** is overall score indicating the pronunciation quality of the given speech. This overall score is aggregated from **Accuracy score**, **Fluency score**, and **Completeness score** with weight.
+Pronunciation Assessment evaluates three aspects of pronunciation: accuracy, fluency, and completeness. At the bottom of **Assessment result**, you can see **Pronunciation score**, **Accuracy score**, **Fluency score**, and **Completeness score**. The **Accuracy score** and the **Fluency score** will vary over time throughout the recording process. The **Completeness score** is only calculated at the end of the evaluation. The **Pronunciation score** is overall score indicating the pronunciation quality of the given speech. During recording, the **Pronunciation score** is aggregated from **Accuracy score** and **Fluency score** with weight. Once completing recording, this overall score is aggregated from **Accuracy score**, **Fluency score**, and **Completeness score** with weight.
+
+**During recording**
+
+:::image type="content" source="media/pronunciation-assessment/pa-recording-display-score" alt-text="Screenshot of overall assessment scores when recording.":::
+
+**Completing recording**
 
-:::image type="content" source="media/pronunciation-assessment/pa-display-score.png" alt-text="Screenshot of overall assessment scores." lightbox="media/pronunciation-assessment/pa-score.png":::
+:::image type="content" source="media/pronunciation-assessment/pa-after-recording-display-score" alt-text="Screenshot of overall assessment scores after recording.":::
 
 ### Scores within words