Determine your target audience and make sure that the messages you portray are addressed to them.
There are endless amounts of die cuts you can use on a brochure- be creative and make yours unique!
It's not just the presentation that counts, but the content also. Make your content come alive.
You don't need 6 different fonts to keep your brochure interesting. That's the job of the graphics, nit the text. Keep it neat, eye-catching and straight to the point.