elegant abstract floral with green and blue flowers for backgrounds, posters, and invitations

floral background abstract design elegant green blue flowers leaves poster invitation greeting card digital nature pattern art decoration beautiful wallpaper fresh botanical decorative illustration spring summer natureinspired seamless artistic texture romantic serene garden bloom foliage natural delicate ornament stylish creative contemporary vibrant pastel vivid detailed handdrawn graphic trendy sophisticated modern soft lush rich subtle computergenerated stylized charming imaginative aesthetic polished ai generated