Lasso and Move Tool.

This image will be the background of the image and is opened in photoshop on layer 1.

This image will be edited on to the the foreground of the image, opened in the same work space as the background but on a separate layer. 

The foreground image has now been sized and placed where i want it to be, it just needs to be cut around to remove the bits that aren't needed.

So as we get the image as close to perfect as possible, we zoom in so as the lasso tool will be closer to the edge.

The best lasso to go around the curved line of the balloons is the magnetic lasso as it will hold on to the lines and get rid of the rest.

After the lasso has gone round all of the subject it can be moved away from the rest we don't need and that is deleted so we are left with the subject that we want.

This can be moved in to place and the lines can be tidied up and blurred so as it looks as though it should be part of the picture. 

This is how the image looks when it has been tidied up.