These are all in the public domain. They are a mere selection of what you can see here which is where they are taken from. https://publicdomainreview.org/collections/east-of-the-sun-and-west-of-the-moon-illustrated-by-kay-nielsen-1922/ . A true treat. While searching for higher resolution versions I discovered that only the public domain review has taken the time to scan them and put them online. Enjoy!