You asked. I like your designs. Your prototyping in photoshop is excelent.
Italy abandoned this design after Vittorio Veneto (550) for Giuseppe Garibaldi (551)
Royal Navy abandoned this design after HMS Tiger for the Through Deck Cruiser HMS Invinsible
The Japanese Maratime Self Defense Force abandoned this design after the Haruna class (DDH-141) for the Hyuga class (DH-181)
The Hyuga DDH-181 is near your concept. add 5,000 long tons of displacement 10 meters more beam, move the radars at least 8 decks above the flight deck. Also pay attention to the USN's LHD-1, Spain's Juan Carlos I, and British Royal Navy's HMS Ocean. There is a gap in capability between the LHA/LHD and the LPD catagories and your ship can fit in it nicely.

i love fantasy builds, just remember its a fantasy.