Just going for something artistic and pleasing to the eye, I thought the bright colors weren't too loud because there is a lot of dark contrast to pick up on. I don't know, I just shoot for fun. Comments are welcome.

 

I kinda like them.

 

I like the first one - it does not look overdone. I think the car is a bit too dark in the 2nd one.

 

Car is too close to the wall, no seperation of elements.