Her is the finished one:
I used my beloves Caran d'Ache Supracolor pencils - dry - in combination with a black Faber-Castell PITT Artist Pen and a dark green Staedtler pen. I wanted to try out such a cimbination for a long time and I must say that I'm pretty satisfied with the result.
Then I started a picture I grabbed from a journal that I'd modified the way I wanted it. Again I used my Supras, this time on Clairefontaine Pastelmat (light grey).
... after adding water.
To be continued.....