Finished this little 3D art piece. The final result is all mesh without any textures, just black and white colors applied.
The Ink effect was not planned but after trying out a sketch MatCap with some adjustments in Photoshop I went for it all the way by using Substance Painter and sculpting brush strokes in Zbrush with a variation of my Waves brush. The fur is all sculpted, I sculpted most of the head from a sphere by using a fur buildup brush I made.
This is the original sketch sculpt before the polishing, amplifying of the fur and getting rid of the symmetry:
I will post a more detailed breakdown here but basically I used a light mask effect in Substance Painter with a clamped histogram and some painting as well as some AO. The result I then brought back into Zbrush and converted it back to mesh only.