For modern military aircraft, they must have a realistic camouflage if possible! If your plane is owned by a snowy country, you can leave it blank, you can simply apply a sealer coat of varnish!
Si vous voulez mettre quelques couleurs, il faudra acheter certaines bombes de couleur ! Je conseille pour l'instant d'acheter, au départ, des petites bombes de peinture pour carrosserie de voiture !
If you want to put some colors, it will buy some color bombs! My advice for now to buy initially small spray paint for car body!
Ces bombes contiennent de la laque qui va énormément solidifier le papier en plus de la peindre!!
These bombs contain lacquer which will greatly strengthen the paper over the paint!
Concernant le choix des couleurs/ Regarding the choice of colors