In module one we learned to use different combinations of color bands to create aerial images emphasizing various aspects of the image.
The top image is false color infrared, combining red, green, and near infrared bands. It is useful for identifying types and health of vegetation.
Middle image is true color, composed of blue, green, and red bands. It makes identifying certain features easier, since they appear on the image the same way they appear in real life.
The bottom image, Landsat 8, while it provides only shades of gray, it has the highest resolution of the three images.