Duplicate the layer three times. Go to image > adjustments Hue/Saturation and play around to change the color of the car in each of these layers, then mask to hide the not necessary parts on each layer
step 2 of 3
Paste the rastaman head an begin to paint some smoke with a white rought brush with low opacity.
Add the leaf shape to give the final detail.
step 3 of 3
Paste the rastaman head and begin to paint some smoke with a white rought brush with low opacity.