You can also make use of them for airbrushing! The inks may be diluted with h2o and used for tonal operate as well. You may as well make use of your Liquidraw inks with different kinds of drawing inks if you need to combine and match distinctive sets – https://howtodrawwithinkpens72693.bloguetechno.com/considerations-to-know-about-how-to-draw-with-ink-pens-72272470