Have you ever tried coloring with watercolor? It is so quick, and easy and so forgiving :) Give it a try!!
I printed my coloring page to simple printer paper, so nothing fancy is needed. The only thing you should keep in mind, to use watercolor with less water on this paper to avoid paper damage. (Check my Instagram post for a little process hint.)
And the most important.. Have fun! :)
Should you want to have the full A/4 coloring sheet, join my Patreon Sketch Club. You will get access to an ever growing library of tutorials and practice sheets!