fall flower watercolor oblong arrangement with sunflower and aster. hand-drawn floral bouquet with bloom in golden and

flower orange arrangement bouquet watercolor autumn oblong sunflower branch blossom fall composition design yellow red dahlia ochre muted aster rustic harvest illustration artwork art isolated greeting card aquarelle painting texture water color botanical nature floral garden season golden october september leaf leaves herb twig bloom flourish petal horticulture flowerbed