Queen Mary's early detractors, and there were some
criticised Cunard for building what they said was an over-sized Aquitania.
The Russian designer of Normandie's hull first approached Cunard with his revolutionary design. Cunard, cautious and conservative as they were, said they were not interested.
None of that ulitmately mattered of course, as Cunard gave us one of the greatest and most beloved, let alone most successful, ships ever built.
This is an interesting point. I've noticed that very few innovations significantly changed the way liners looked especially Cunard. Straight bows and transomed sterns ruled from the late 1800's until Normandie's hull design. Following that, aside from their livery and funnels, its pretty diffcult to find any major differences among the liners of the 40' and 50's.
Reading Potter and Frost with the advantage of 40+ years of hindsight, it's interesting to see how much Cunard worked on making QE2 different from her predecessors and Q3 (design and service) but how similar to QE and QM she actually was - "conservative as they were".
Q4's trans-Atlantic service drove her hull design and aside from her raked and bulbous bow, the rest is a limited design upgrade of QM and QE. QE2 kept her predecessors interior and exterior promenade arrangement (adding an additional one with the aluminum superstructure) as well as the cascading stern decks, single centered rudder and the Normandie's rounded stern instead of the square ones that would dominate ships of the late 60's and on (less drag, more useable internal space and less expensive to construct). She did integrate stabilizers which were add-ons for QM and incorporated bow thrusters - a limited advance taking advantage of new technologies but still short of any radical makeovers.
As forward leaning as Potter and Frost tried to make Cunard seem in delivering a new style of passenger liner/cruise ship, Cunard was almost too conservative in adapting the Q4 to rapidly waning trans-Atlantic service and increasing cruise trade. Don't get me wrong, I think QE2 is a gorgeous ship (even moreso before they eliminated the Lookout Bar and put the "box" on her forehead) but my point is that Cunard was very resitant to radical change when it came to their ship design.