Gel Pens: Gel pens use h2o-based gel ink that flows freely and efficiently, generating vibrant, opaque hues. They can be great for introducing bold lines and accents in your function. Architectural Drawings: Use these techniques to differentiate elements and surfaces in architectural drawings, like the brickwork of a building https://juliusjqstt.dbblog.net/10456492/5-essential-elements-for-ink-drawing-for-beginners