This link might be of assistance to you with respect to how to install vinyl planking.
Which Direction to Install Vinyl Plank Flooring
We installed some planking in our RV and the planks lie parallel with the length of the RV, and they also pick up the light from the large rear window. When we had planking installed in our son's home, they laid the planking in the living room the same direction as the planking in the hallway. It also happened to be "towards" the patio door and its light. One may also want to consider laying the tile in the direction of the longest side of a room.
Which Direction to Install Vinyl Plank Flooring
We installed some planking in our RV and the planks lie parallel with the length of the RV, and they also pick up the light from the large rear window. When we had planking installed in our son's home, they laid the planking in the living room the same direction as the planking in the hallway. It also happened to be "towards" the patio door and its light. One may also want to consider laying the tile in the direction of the longest side of a room.