This one should be a VIDEO process actually, but the program After Effects doesn't wanna allow me to export the 2 minutes vid properly: the original mp4 file from Procreate come with full black when playing. I hope to figure things out as it worked before and I don't see why it's not working here.
Anyway, I could perform a step by step as you know them with the traditional drawings, I do have the same way of working in digital: multiple layers for each stage. It's all the more true with the cross-hatching, I will show you that too soon.
I still really like this drawing, I'm so into extreme black solid shadows, heh!