Test

In order to change the color of the sky, I started by duplicating the background layers. Then I selected only the sky using the magnetic lasso tool. Once only the sky was selected I went into layers and played around with the hue and saturation until I got the sky to be green.

To place the woman onto the panorama, I had to first modify the image size so she would be an appropriate size to be placed onto the panorama. I then selected only the woman by using the magnetic lasso tool while leaving out the white background. Following my selection, I used the move tool to drag the selected woman onto the panorama.