They are not the most handsome ships, I grand you. But they are not general support ships either, and they operate littorially in the Agean, so they don't need much seakeeping. HN unlike other navies, has
all its bases on islands, for example the HQ of the fleet where most of the ships and equipment is, is on Salamis island, the rest of the fleet is on Crete island, on Poros island, and a dozen more smaller bases. So HN has 10 ships like the above, 4 oil tankers and 6 water tankers and many small trasport ships that ferry people and supplies there from the mainland. So reaching a naval base in Greece is difficult, but on the other hand, the warships have to travel short distances in case of need
finished, only suggestions left
I am not going to make all 10 tankers since some are identical, but here are some that I will do:
http://www.hellenicnavy.gr/Ships%20Photos/A416.JPG
http://www.hellenicnavy.gr/Ships%20Photos/A433.JPG
http://www.hellenicnavy.gr/Ships%20Photos/A434.JPG
http://www.hellenicnavy.gr/Ships%20Photos/A466.JPG