When we ordered ours we made three changes to increase storage in the cabins.
First, in the forward cabins we used the layout from the H49. That meant instead of centerline berth (which we taped out on the floor of our apartment and decided was too narrow for two people) we installed a traditional v-berth. That allowed us to install cabinetry above the v-berth along both the starboard and port sides.
Second, in the master stateroom we extended the hanging locker that is just aft of the galley to go a few inches further aft until it was right up against the non-opening port light
Third, still in the master stateroom and along the port side we raised the cabinet aft of the hanging locker. It is no longer a vanity but more of a locker.
The one other change we could have done is get rid of the settee in the aft cabin and made that into storage locker.