art artist artistic color colors green paint painted painting paints red stain stains wood yellow abstract aged button grunge grungy isolated ragged rough round rustic series spot variation variations board chipped copy space dirty old plank plywood sign stained worn background bicolor city colorized decay design peeled scratched urban white bubbles colours mixed rock rocks shape shapes shine shining smooth stone stones sundrocks water wet big dinosaur lizard loch ness machete ocean paper scary sea monster serpent waves