vibrant watercolor butterflies in blue and purple hues on a white background. concept of nature, insects, watercolor art

butterflies watercolor blue purple nature insects art colorful pattern wings vibrant design natural spring summer beauty decoration bright abstract illustration painting wildlife background flying delicate gorgeous vivid ornamental artistic texture drawing creative handmade winged majestic elegance fauna artwork pastel beautiful decorative free tranquility light harmony backdrop wallpaper watercolour aquarelle ai generated