The individual vehicle parts have to be connected to the copying of the template nor short stitches that creates a 3.5 year old child is usually not alone.
It's nice that you already have a proposal by the background-box, as the vehicles can be painted, then everything else will do the imagination of the little master.
Through the template you best with a sharp pencil, Bundstifte are rather unsuitable for (too wide), these can then be used for coloring.
The large areas can be painted clean, as long as the mask is still on paper.
I think it's nice, as long as our son busy and he has to enjoy it so.
Buy recommendation.