As we were looking, once again, at all the reader photos, we realize there is a reason the lounge chairs are often found on the wraparound portion of this large deck. While the main portion of the deck is under cover from the cabin above, the wrap around portion gets more sun.
If the ship is traveling in a southerly direction 5190 would get afternoon sun on the deck while 5191 would get morning sun. If the ship is traveling a northerly route, the opposite is true.