Johan Egerkrans is a Swedish illustrator and writer — parmarily of children’s books.
Egerkrans has a wonderful touch with dragons and monsters. I particularly enjoy the energetic semi-cartoony style with which he portrays dinosaurs.
Egerkrans’ work often carries of echoes of classic Swedish illustrators, particularly John Bauer (e.g. images above, bottom).
His webstore features signed books and prints as well as posters. You can also see his work, often reproduced a bit larger, on his ArtStation portfolio.