Thanks for playing! So the way I did these was essentially a 3 step process. Step 1 I used a digital 6B pencil brush, to draw the outlines on a layer above a white background in rough. Second stage was turning the background gray, add a layer below the outline and then using a white 6B to fill them in from the layer underneath the outline. 3rd stage was touching up the black outline layer making them thicker, filling in missing gaps, adding some texture etc. End result it looks like paper cut outs!