The following are some personalized signature designs of "Zhao Hua":

1. Zhao Hua: simple, direct, clear and concise, suitable for Zhao Hua who likes simplicity.

2. Hua Zi: Simplify the name to "Hua Zi", which looks friendly and cute, and is suitable for Zhao Hua who likes to be relaxed and happy.

3. Zhao Daxia: Comparing Zhao Hua to a hero shows Zhao Hua’s boldness and sense of justice, which is suitable for Zhao Hua who likes martial arts.

4. Lao Zhao: Signing with "Lao Zhao" reveals a kind of cordial friendship, which is suitable for Zhao Hua who likes to be close to his friends.

5. Zhao Hua★H: Adding "★H" after the name can show Zhao Hua's love for music or celebrities, which is suitable for Zhao Hua who likes music.

Signature designs vary from person to person, and you can choose a signature that suits you based on your personal preferences and personality. I hope these designs can provide some reference for Zhao Hua.