Pen and Watercolor: This is a traditional mix where by the pen’s precision complements the fluidity of watercolors. Artists use random lines to build several textures in an ink sketch. This method may be a person unbroken line or some quite lengthy lines, curving and overlapping at random details. https://griffiniaodp.bloggerbags.com/42750315/not-known-details-about-ink-pen-drawing-techniques