The IJN Echigo on her way accompanied by the IJN Nagi.
These ships were never built only designs, the battleship is the A-150 type the follow up class of the mighty Yamato with even bigger guns and armour.
The other ship in the background is a B-65 type Battlecruiser or Large Cruiser essentially a smaller version of the Yamato, with smaller guns and armour but more speed.
Original by leovictor:[link]
Coloured by the Software: Recolored