Generating sleek gradients with a pen is a way that can insert a sense of realism and depth to your drawings. Architectural Drawings: Use these techniques to differentiate elements and surfaces in architectural drawings, such as the brickwork of a making or the feel of a street. Drawing Circles: https://riverrybcd.azzablog.com/37560186/how-much-you-need-to-expect-you-ll-pay-for-a-good-ink-pen-drawing-techniques