Render the colors inside the selection. Or copy the layer into a separate layer.

Concept car design

I will also apply some layer styles to this small object.

Concept car design



Concept car design



Concept car design

I will add some black to the rear end of the vehicle (on a new layer).

Concept car design

And erase back some parts.

Concept car design

Erase the edges for good.

Concept car design



Concept car design
 




Concept car design

I’m using the eraser to maybe change a little it some shapes of the car.

Concept car design



Concept car design



Concept car design

And we are finished with that.

The background effect was made by Shape transformed basic round rough edged brush.

Scattering is set to Pen Pressure; Opacity Jitter is set to Pen pressure. Size and Shape jitter is also set to pen pressure.

And, so, enjoy my concept. Will be better next time.

Concept car design



Concept car design

Enjoy and try it!