The first picture shows the old view from the master bedroom doorway, looking towards Ellie's room. You can just see the handrail for the stairs on the left. The second picture, is taken from within what will be the new master bedroom looking towards Ellie's room. You can see how much longer and wider the hallway is. The framing for the wall and door to the master bedroom is showing.
The 3rd pictures shows the old view from the opposite end of the hallway as the first - standing in Ellie's doorway and looking down the hallway towards master bedroom. Compare that to the 4th picture (ignore the mess). You can see again the wider hallway, and the framing for both Drew's room on the right and the new bathroom on the left.
Once again, I have included the architecture diagrams for the old and new 2nd floor layout. Next week, I hope to add some shots of the exterior. That should give an idea of how everything fits together.