I don't know merchants very well at all. Does this machinery layout make sense? It seems like, for this two-shaft setup, the diesels (I assume she's diesel) must run inboard extension shafts forward
, where they would pass through gearboxes that would carry power outboard to the wing shafts. For a superstructure so far aft, only a single shaft would seem to make sense (and maybe not even then).
Alternately, relocate the superstructure forward a compartment or two (I think probably two). This will improve vision over the bow, increase the number of containers that can be shipped (since there could be two full stacks aft of the superstructure), and improve loaded versus unloaded trim
on this type of design, it would make sense. other container ships with rear mounted superstructure tend to be single shaft and have the propeller and rudder so far aft, that they look like the have an flat "ass"