I’m looking for a Hans Christian Andersen collection of fairy tales from the early 90s. I read it when around 1994-6 but it could have been published a little earlier. I remember it for its Little Mermaid illustrations. They were so beautiful and seemed to glow. Lots of pale mermaids with long blonder hair. Like angels. The pages I remember most are the pictures where the Little Mermaid’s sisters are hoisting each other up out of the sea to hand her a dagger to kill the prince. The last page is the Little Mermaid floating to the sky as an angel after she kills herself to save the prince. It was hardcover and I believe it also had The Princess and the Pea and The Tin Solider stories in it, but I think different illustrators worked on them.
Hope this was enough to be helpful. I tried to look up books published in that time frame with Hans Christian Andersen author credits, but couldn’t find a comprehensive list.