Saving .tif and getting weird output

Hello All

I am saving my image in photoshop to a .tif format.  After saving the image and then opening it, it only saves the image of my first selection which I made, not the whole image.  I merged all the layers together, but still the same.  

This is what I am supposed to get

and this is how it saves it:

I know that I made selections to the building areas and saved the selections.  This is the first selection I made and its saving the first selection instead of the whole photo.  Anybody can help me with this?