STEP 5
Now we need to feather our selection. Go to Select>Refine Edge. Increase the feather to 80 pixels. Note that the value of feather that is looking good in my case may not look so good in your case. The value of feather totally depends on the dimension of the image. More the dimension of the image, more should be the value of feather. In my case, the width of the image is 2896 pixels. Press OK.