I'm amazed by the quality of the coloring of the cards. A design like Marek's and a color scheme like yours are, in my opinion, the optimum combination for models that are accessible to the greatest number of people, provided you have a minimum of experience in paper card.
It's a pity that your contributions are so rare on this forum, which I've just joined.
Congratulations.
Le criquet
www.criquetaero.fr