This is a good start but overall your application is lacking in detail. In the future, try to include more details about how you would improve the players' experience. For reference, the minimum word count for applications is 600 words, this application has less than 200.
Also, please include a specific staff member who you believe can vouch for you.
You do have a decent amount of previous staff experience, though in the future I would recommend adding some details about your staffing experience, e.g. what your role was on the previous server(s) you were staff on, how long you spent at said server, etc.