graphite pencils, the metal sharpener and wodden shavings

art artistic background basic black classic colourized common concept details dirt drawing edited filter force frame graphite grayscale greenblue grime grunge impression made monochrome newspaper old paper pencils picture plain posterized print raster rustic school sharp sharpened sharpener shavings simple supplies text traditional vignetting watermark white wooden writing red shaving grey pencil ppt slide preparation secondary back maintenance hardness test testing seniors structured structure texture