saturated abstract blue background. abstract wave background. colourful strokes

abstract art textured painting multicolored stripes oil expressionism colorful striped patterns texture paint techniques bold colors brushwork background color palette composition impasto technique design surfaces blending lines knife geometric strokes impressionism layers harmony shapes application vibrant artwork abstractions gestural expressionist brushstrokes textures fields effects canvas impressionistic landscape print mixed media saturated blue wave colourful background strokes abstracted