Chevy II Concept WIP

Hola
Here is the beginning of a drawing in paint that I will use for a future model car. I'm not by all means good with paint but the look I'm going for is Eleanor style.....I don't know if you guys will know what I mean, but I liked "Eleanor" from Gone in 60 Seconds (2005) Because the body kit looked aggresive but not look too crazy or "tunerized" the car. so I am attempting to make a Chevy II with a body kit and some nice rims, but not going overboard.
I must sound crazy so on to the first pic:
http://img329.imageshack.us/img329/7755/novaproject8ng.png

I suck at shading and I'm looking for ideas on what to do with the rear bumper and something to fill the empty space on teh front bumper.

I like the Chevy II. Have you seen the BigTime Muscle Chevy II?

Yeah I saw it at Wal-Mart the other day....I was tempted to pick one up just for the rims but I decided the rims were too deep to use. Anyways, I'm planning on building a model of my picture. Any ideas for the front bumper and hood? I was thinking a cowl hood....

If I were you, I'd leave the front as clean as possible, except 2 fog lights in the bumper, maybe like this?

http://img359.imageshack.us/img359/7108/novaproject8ng1vk.jpg (http://imageshack.us)