Laravel: cannot use php artisan migrate with Amazon RDS

I followed every tutorial from Amazon to set up the RDS Database then to set up the VPC, the subnet, and the Security Groups but I still can't connect to the Database using Laravel command.

However, I can connect to the Database using MySQLWorkbench...

This is the error I got when I use the command "php artisan migrate"

Every help will be more than appreciate, thank you Guys.