block blocks colour colours grid grids hue hues patch patchwork pattern patterns series shade shades texture textures tone tones variations alligator alligators amphibian caiman crocodile crocodiles dinosaur everglades Florida gator gators leather predator reptile reptiles scales swamp water wetland wetlands backdrop background colors paint paints paper papier variation variety various watercolor watercolour color colored coloring crayon crayons line lines mark marks pastel patels autumn fall isolated leaf leaves natural nature canvas surface grunge grungy rough wall art rustic spatter watercolours abstract tint tints pastels