amber background brown color colors colour colours corrosion dark decay deteriorating deterioration discoloration exposed external gray grey grunge grungy iron lined lines metal neglected old orange painted panel plate rectangle rectangular rough rust rusty shadow shadows streaked streaks sunlight texture textures urban-decay wear weathered worn Australia Australian Australian-sleepy-lizard banded bands blue-tongue blue-tongued-lizard blue-tongued-skink blueys body-flattening bogeyes crawling creature dark-streaked distinctive diurnal eyes fauna ground-foraging large-headed lizard omnivore omnivorous reptile reptilia sedentary Skink skink-species slow-moving striped stripes sturdy terrestrial tiliqua-multifasciata tongue tough-hide viviparous-skink wildlife