Dawn is the time that marks the beginning of twilight before sunrise. It is recognized by the appearance of indirect sunlight being scattered in Earth's atmosphere, when the centre of the Sun's disc has reached 18° below the observer's horizon. This morning twilight period will last until sunrise, when direct sunlight outshines the diffused light. Wikipedia
I think a colorful dawn like this, mirrored by a lake, should come a soundtrack composed by the famous John Williams.