Seeing as I get emails daily on the subject:
1- If you have never ever been to a Audio Comp, you will get rejected.
2- If you have never completed a project like this before, you will get rejected.
3- If you are in High School, you will get rejected
What looks good - You attended and placed at several large shows the prior TWO years (one is good, two lets them know your serious)
-Provide pictures of what you have done, the photos do not need to be great, but you want them to be of something great (prefab boxs, wire mess, bad dash kit installs etc.. not good)
Also make a resume, you need to sell yourself, your car and your ability. Can be a word doc or PDF. I have seen some very well done and some well.... we dont talk about publically