water color background with black artistic brush strokes, washes, blobs, marks.

abstract anxiety art artistic asphalt backdrop background banner biohazard black blobs brush canvas carbon charcoal coal color concept concrete corner creative dark darkness design dirty drawn environmental fancy fear fiber fluid foam frame fuel future graphic graphite gray grunge halloween hand horizontal industrial interesting label leak marks material mind modern monochrome negative nuclear oil oily old package painting paper pattern petrol petroleum poison pollution poster rough sponge stain strokes tar tarmac texture textured thoughts unusual wallpaper washes water watercolor watercolour