Photo Manipulation Pt 1

Using the Photoshop tools and an image provided, we were assigned the task of replacing the sky with another and colour balancing the picture to make it look as though it was the original.

This is the original image. By using the channel panel (specifically the blue channel), I created a mask of the sky which allowed me to manipulate it without damaging the original image. 

I then chose a picture with a sky and went with the one below. 

By placing this in the layer mask of the original layer and colour balancing the original layer to the colour of the sky in the 2nd image, it made it seem as it was an original picture.