angles arm basket cherry-picker cleaning danger dangerous electricity elevated elevation equipment extension external Harness height heights high insulators machinery on-high perspectives power power-lines power-pole raised raised-platform risks risky safety safety-harness surface surfaces up-high washing work workman background brown green lion lioness nature Planckendael strength zoo 2014 artwork button communication design Ebola medical red special stop vector arrow board canada colour conifer fire flammable forest indicator inflammable notice risk sign tree warning wood cliffs coastline natural Pembrokeshire rocks sea spring wales water welsh architecture blue downstairs elements sky stair stairs step upstairs white appearance appetite blind-bugs bugs damage damaged destroying destruction destructive hungry insatiable insects riddled surfaced termites texture textured textures thick thin timber trails voracious wall white-anted white-anting white-ants wood-damage wood-eaters wood-wall woodwork alert appropriate-behavior appropriate-behaviour care caution cautious concern denied direction inform information informing message not-allowed not-permitted permission-denied please polite prohibited prohibition prohibitions protect protection rectangle rectangular rules signage signs text warning-sign words advice announcement be-careful beware black communicating consumption faucet health listen Look looking lookout tap undrinkable unhealthy approval approved directions park permitted public-park vehicle careful observant rail railway railway-station railway-tracks trains watch watch-out