Graffiti in the Wild

D spotted this colourful wall from our Black Isle walk the other day, through his binoculars - it’s on the old toll booth road, but down on the beach so can’t be seen from there. I don’t know if it’s meant to say something (& sorry if it’s rude!). We cycled down for a look - very muddy in places, and as he carried my bike across a wee burn I slipped & fell on my a*se :)
Extra of more of the wall