The new task I'll show you how to represent a marker's drawing, using a usual photo.

Open firstly the necessary photo in a new window: File – Open (ctrl+o)

Markers Drawing

Increase its contrast a little, applying next selection: Image – Adjustments – Curves (ctrl+m).

Markers Drawing

Apply the corresponding filter also: Filter – Artistic – Poster Edges.

Markers Drawing

Then mark out the background, using the Magic Wand Tool and Polygonal Lasso Tool to make it a little brighter: Image
 
– Adjustments – Brightness/Contrast
.

Markers Drawing

Move off the markings (ctrl+d) and select for this layer next command: Image – Adjustments – Threshold.

Markers Drawing

We've got too sharp lines, which is why we have to blur them out a little with Filter – Blur – Gaussian Blur.

Markers Drawing

Copy this layer: Layer – Duplicate Layer (ctrl+j) and move the copy under the basic layer containing the contours. Then process the layer with Filter – Artistic – Cutout.

Markers Drawing