I made a process video for this illustration:
You may find some useful resources for Procreate if you are interested. I have some brushes and palettes available for free here. There are some nice stamps available (for example, the evergreen trees in this picture are actually stamps) and right now I am working on 2 super exciting packs: textures and lights. You will see already that I am using them (like in this piece: the stars are made with my star brushes and they will be available soon, FOR FREE). Follow me and get updates.
Oh, and also super important, the Procreate brushes are also compatible with Photoshop, so everybody can use them!
Also check my Youtube, I post process videos of my illustrations and even short tutorials (mainly if they are requested).