Omslag voor: Theo van Hoytema, The ugly duckling, 1894 (1894) by Theo van Hoytema and David Nutt https://www.rawpixel.com/image/13738631/image-paper-face-personFree Image from public domain licenseBug png collage element, transparent background https://www.rawpixel.com/image/9750308/bug-png-collage-element-transparent-backgroundView licenseIllustration for "The Ugly Duckling" in H.C.Andersen, "Fairy Tales and Stories", Volume 1 by Vilhelm Pedersen https://www.rawpixel.com/image/8923722/photo-image-face-art-vintageFree Image from public domain licensePNG Bulldog sitting , collage element, transparent background https://www.rawpixel.com/image/9267166/png-dog-animalView licenseBulldog sitting collage element psd https://www.rawpixel.com/image/9267229/bulldog-sitting-collage-element-psdView licenseBulldog sitting isolated image https://www.rawpixel.com/image/9237843/bulldog-sitting-isolated-imageView license