Zm__'s cG - a narrow pathway...

First, I open 1 of the reference I posted previously. Adjusted a bit to fit in A3 size paper.

I started tracing the reference slowly by using Pen Tool.



Finish tracing my reference.

Then I start to color.



After finish coloring, the outline is removed so that it'll look nicer.

After that, I applied some filter using Filter Gallery. In this case, I choose the Cutout filter on my reference picture.

This is the effect after I applied the filter, it look much more better compared to the image just now.

Finally, I added my symbol...