Four stylized anime characters in red, white, black, and yellow HD Wallpaper

The image is divided into four vertical panels, each featuring a stylized silhouette of an anime character. The first panel on the left shows a red silhouette on a black background. The second panel displays a white silhouette on a gray background. The third panel features a black silhouette on a white background. The fourth panel shows a yellow silhouette on a black background.