The galley looks great with lots of counter space. There is an option of a washer and dryer, though I wonder where it would fit. This is a very clever layout. The 450 has an unusual deck design. The center cockpit is on the small side, but that's to be expected when you focus the design around the interior layout.
Side decks are minimal forward and disappear entirely aft.
Going aft, you walk a sort of raised quarter deck, which provides volume for the aft cabin, though, again, does little to keep the VCG down. This staying gives you a well-stayed and stiff rig, though it is not my favorite type. Whether it's fast or not, cruisers like to sail downwind with the apparent wind lower than 150 degrees. The sweep of spreaders means that they could impale the mainsail if they eased too much. Note the diagonal struts stiffening the lower mast panel.