Thank you so much! Hmm it depends on which effect you mean? I use a lot of ecoline ink, sometimes I grind my own black ink with an inkstone etc. (I haven’t found any decent colours yet, let me know if anyone out there knows a good brand!) and I am totally OBSESSED with Pentel brushes (I pretty much own them in all the colours, so expensive but so worth it)! But the effect is also caused by paper. For a non-watery effect I use regular sketch paper and for the watery I use a paper that’s usually used for (woodcut etc.) printing and it has a sort of non obnoxious shiny finishing that isn’t totally equal on all parts of the paper? I really like the effect and in this drawing I enlarged that effect by rubbing a little chapstick on my hands and then rubbing my hands on the paper!