To create the illusion of a single image, Photoshop was used to manipulate multiple images. Unwanted items were removed from the background image using selection tools. Then, the astronaut foreground image was selected using the Polygonal Lasso Tool to cut out the unwanted background. This astronaut image was placed on the Mars background. Additional editing was done to resolve issues like the blue Earth still visible in the astronaut's helmet visor by cutting around the transparent part and placing it on a new layer with its blending mode set to screen. Simple enlargements of the foreground image then allowed it to fit proportions of the background layer.