watercolor painting of a green plant with large leaves. the leaves are delicate and flowing, creating a sense of nature

serenity organic flowing minimalism design illustration watercolor background botanical decorative leaf plant art decoration flower leaves nature set bouquet decor element invitation isolated wedding card floral foliage garden graphic natural postcard print summer wallpaper abstract drawing painting pattern backdrop beautiful boho branding composition delicate digital elegant eucalyptus graceful holiday lift pink powdered branch bud classic cute field forest gentle grass green greenery greeting herb herbal ladies love retro romantic spring textile vintage white wild wildflower banner ai generated