To express a comparison of pride, you would need to use a different structure. Here are some options:
1. Using "more proudly":
* "He walked more proudly than his brother."
2. Using "with more pride":
* "She presented her work with more pride than she had ever shown before."
3. Using a different adjective/adverb:
* "She was more confident than she had ever been."
* "They spoke more eloquently about their accomplishments."
The best option depends on the specific context and the desired emphasis.