This is a vector painting of Starlight Glimmer and Queen Chrysalis in the same design as the Kirin/Nirik shield. The particular design is symbolic art all on its own. It’s a reference to the ancient Chinese belief that the tiger and the dragon are eternal rivals. The moment Starlight defeated Chrysalis and saved the changelings from her reign of terror was the moment it became painfully clear that they would always be rivals, and their glorious fight to the finish would be forever remembered throughout all of Equestria.  
The legend of two magical ponies fighting for the fate of all pony kind;  
Starlight Glimmer the Unicorn - A pony armed to the teeth with magic spells that rival Princess Twilight Sparkle, and a solid heart of diamonds who desired nothing less than the safety of all pony kind.  
Chrysalis the Changeling - A tarantula hawk with an insatiable bloodlust and a heart as black as her exoskeleton that desired nothing less than the lives of every unicorn, pegasus, and earth pony served to her on an obsidian platter.