Kayle's Classic splash art received some tweaks, scheduled for release on the Kha'Zix patch, due to the similarities of the rock formations in this art and the image of the Iona, Shield of Emeria card.
Silver Kayle is one of the four Collector's Edition skins, the other champions with this distinction are Alistar, Annie and Ryze. It can be obtained by buying the Retail Copy of the Collector's Edition.
The Chinese Classic Kayle art is used as the Tribunal image. Also, it is the same image that it is used on the page "The Tribunal", on the game start screen (or lobby).
Judgment Kayle is a reference to the comic book character Judge Dredd, most notably the shoulder plates.
Battleborn Kayle was first leaked in Brand's art spotlight in which it was originally named Gunmetal Kayle which can be seen here .