First Wallpaper

Its good except for the text in back looks pretty bad and you could have made it darker and more slick looking.

 

I hate the text in the back, there is too much going on back there. Also I would have made the diameter of the spotlight a little bigger because it looks like the car is sticking out from it.

 

It looks like the car is floating...

 

It looks like you darkened everything in the bottom, try just making the shadow longer.

 

Extend the cars shadow without making the bottom darker.

 

With an overhead lighting the shadow would be short and under the car... The lighting would have to come in at a shallow angle to get that long of a shadow.