Destiny Awaits

The largest battleship ever roamed the high seas sailing towards it's end. The Year is 1945 April 7th.

I know the sky could be better but I don't know which colour should be the best.

Original Drawing from the artist Yukio K.:
http://www.k3.dion.ne.jp/~erogro/drawing%20other%20bw%20004.jpg

Coloured by the Software: Recolored
https://recolored.en.softonic.com/?ex=CORE-117.5