aged alert ancient antique backdrop background brown caution damaged decoration decorative free grime grimy grunge grungy icon image isolated message octagon old page paper parchment pictogram pictograph picture resource road sepia sheet sign signage somadjinn square stock stop stopping street symbol symbolic texture textured traffic vintage warning worn yellow black camera enforced photo speed speeding access-denied access-limited advice appropriate-behavior appropriate-behaviour behave behavior behaviour communicate communication denied directions entry-denied entry-prohibited keep-off limited-access no-access no-entry not-allowed not-permitted permission-denied prohibited prohibition prosecution restricted restriction restrictions safety trespass trespassing unauthorised unauthorized white announcement clean clean-up cleanliness communicating concern dog doggy-do droppings excrement excreta hygiene informing lettering mess messy pets pickup poo prepared red responsible rules sanitation symbols text waste wording words Bleed bleeding blood bloody concept conceptual crime crimson danger dangerous digit digits distress fake finger fingers forensic hand hands horror imprint imprints index isolate isolation pain photograph print prints scene suffer suffering symmetric symmetrical symmetry thumb torment apocalypse atom atomic bomb destruction fallout hazard nuclear nuke radioactive warfare bio biohazard damage decay design dirty disease graphic infection poison poisonous substance toxic viral virus Asia bottles civilisation contamination death Dirt disaster disposal dump ecological ecology ecosystem Eichhornia environment environmental fish garbage hyacinth invasive nature patterns of decay plastic pollute polluted pollution poor problem problems recycle river rubbish scrap sewage trash unhygienic urban urban decay water forbid forbidden no photography addiction nicotine smoke smoking tobacco blue