1. Configure Your GAListener. Make it look nice instead of the standard!
2. In the start it is bold light blue, white, dark green, light green, red number, grey names, choose a color and stick with it.
3. I can't do /bukkit:? and /bukkit:help (which is good) but I can do /? and get all the plugins?
4. Change your essentials so it doesn't look basic!
5. Add more announcements to make your chat feel more lively.
6. Good job on the store!
Overall, generic faction server. Nothing really to bash about.