Yay or Nay?

A friend of mine suggested that orks could have a color, too, so I gave it a quick try. I am not sure if it is better than original grey one, and I am also not sure which color is better. I am considering only yellow and blue for now.

 

The yellow one is ugly photoshopped so in real it should look better.

 

So, is the idea of recoloring Ork vehicles... yay or nay? :)

Done