Critique of the Kantian philosophy
"Critique of the Kantian philosophy" is a criticism Arthur Schopenhauer appended to the first volume of his "The World as Will and Representation" (1818). He wanted to show Immanuel Kant's errors so that Kant's merits would be appreciated and his achievements furthered.
Western philosophy
Late modern philosophy is usually considered to begin around the pivotal year of 1781, when Gotthold Ephraim Lessing died and Kant's "Critique of Pure Reason" appeared.