Short Consultation on Database Design (PHP & MySQL)

Hello, I need a 5–10 minute consultation regarding the database design for a maintenance management system. I'm looking for someone experienced with MySQL/SQL and PHP to review my database structure and provide feedback on: Table relationships Primary and foreign keys Database normalization Suggestions for improving the design This is a very small consultation only. If the consultation is helpful and I have more budget in the future, I may hire you for additional work. Thank you!