That is NOT a ship! It is an inhabitable turtle!
The hull drag will be horrendous - they will have to put air-bubbling systems under the four legs and the body.
Whenever the thing starts rolling, the people in the end cabins on the arms & legs will be ejected through the deckheads!
And the beam of the thing is so great it will be impossible to get into most ports.
I cannot see any engine exhausts anywhere so I guess they will be where any turtle normally has his overboard discharge!
Once into any sort of a seaway, the loadings on the attachment points of those front & back legs will be into the not-going -to-last-long-territory! Who dreams these idiotic ideas up anyway?