The squeezed ship in the middle is the KENTAVROS, a cruise ship of the Kavounidis Line. She was built in ww2 as a US Navy seaplane tender.
In the left is Hellenic Mediterannean's KASTALIA. The last ship built for HML in 1974 she was used both as a ferry and a cruise ship.
In the right is the EL GRECO. She was better known under her later name VERGINA. Here is a link with her story:
http://www.faktaomfartyg.se/bilu_1964.htm
EL GRECO was bought by Epirotiki Line, but as far as I know she never sailed for them.
Report