Byzantine ships

I have found a magazine with some photos of reconstructed Byzantine ships from the 7th-12 century. The photos are from an exibition that took place here in greece 1 or 2 years ago.

 Here is a trade ship

 A scout ship

 A battle ship as it was in 7 century:

 During the 9 century there have being huge changes in the Battle ship and the start to look like those:

 A dromon:

 2 ships called Caravos (quarib in arabic or Caravel in latin):

 And at last a transport ship. That ship had the ability to through into the beach (and into the heat of a battle mounted units ). It name was taritis:

 Greetings and happy new year

 To eaglecap: My source is a magazine ( I don't remember the name) with a military history subject. The photos are coming from an exibition about the byzantine ships in the centuries 7-12. The recostructions have been made from a univercity (i thinks the aegean, but i have to read the article again in order to confirm that). To make the recostructs they used Byzantine latin and arabic sources.

 Yes i am from greece since born . I am from central greece, Thessalia, but i live now in Thessaloniki for univercity studies.

 To Ikki: When i first saw the photos i thought the same. There are almost no recontruct of those ships not even a close image about how was them. But as you can see there are some differences , but the general shape of the ship is the same.  But i don't understand why is that weird? Almost all the Byzantine ships was coppied by the arabs and the Venetians.