Unfinished Portrait Line Drawing of Romeo Revira makes on NFT. The original is Line Drawing is posted on Hive blog on this link: https://peakd.com/hive-156509/@sucal/wip-line-portrait
Line art or line drawing is any image that consists of distinct straight or curved lines placed against a (usually plain) background, without gradations in shade (darkness) or hue (color) to represent two-dimensional or three-dimensional objects. Line art can use lines of different colors, although line art is usually monochromatic. Line art emphasizes form and drawings), of several (few) constant widths (as in technical illustrations), or of freely varying widths (as in brush work or engraving). Line art may tend towards realism (as in much of Gustave Doré's work), or it may be a caricature, cartoon, ideograph, or glyph.