since your there and you said you didn't put much time into it, and you have until the 14th, why not put a lot into it and make it perfect? rather than posting one you just slapped together? just a thought.
I'll go ahead and critique yours monkey. Strictly constructive so don't get mad.
1. The color scheme looks good, although you might want to make the hood stand out a bit more. it's hard to see.
2. There's a jagged edge on the bottom of the front lip.
3. The selections around the wheel well and around the top of the car are kind of rough. Make smaller clicks and take your time
4. I really like the background - Did you draw that yourself?
So there are some things that I see that can be fixed, worked on in the future.

A pretty good job overal man.