You don't seem a bad guy, but as mentioned your are relatively new, I remember your activity back in less than 2 months as you weren't much active before and as you mentioned your brother was playing too, so your activity was even lower, and I also doubt about what's gonna happen with you and your brother in case you get administration rights as it's not the first time someone messes up and used his brother as an excuse.
Keep up the activity and efforts both in-game and forum, get your own CS and feel free to re-apply in 2-3 weeks.
Application Denied