Trying to get that photo right would take a master manipulator. The two door jams are at different angles, so it might be best to replace the right door jam with a copy of the left.  But the the floor on the left side of the door is decisivley lower the the floor to the right of the door.  It could be done, but it would be a real challenge.  As is, the photo is effective at giving you an idea of some of the COD details.