You need to use other speciality pens, like calligraphy pens, for line drawing. These kind of pens have specially made nibs generally used for hand lettering techniques. Acrylic ink is water-proof when dry, in order to paint with different layers without stressing with regards to the paint reactivating. Airbrush https://connerkbsft.total-blog.com/the-smart-trick-of-ink-drawing-for-beginners-that-nobody-is-discussing-61242213