image source https://labtechs-notes.com/cutout-picture-design/
image source https://www.silhouette-ac.com/category.html?sw=%E3%83%95%E3%83%A9%E3%83%AF%E3%83%BC%E3%83%96%E3%83%BC%E3%82%B1
image source https://flowerillust.com/photo_monochro.html
