Navy:
62 3in Naval Gun - photo is Hunt class destroyer with 4in guns. There were indeed six boats with 3in guns before the war (A-1 - A-6) - better picture is eg. 17090
64 4.7in Naval Gun
191 Destroyer DD - Hydra class destroyers with 120mm guns were used from 11/32 only (now 1/30).
Photo is Hunt class destroyer with 4in guns.
A photo of Hydra class is here
http://www.navypedia.org/ships/greece/gr_dd_hydra.htm or I'll attach one
63 4in Naval Gun,
190 D. Escort DE - it's actually the same, with a different photo only. Maybe it's worth to make unit 63 available until 12/43 (pictured Aetos class destroyers), and unit 190 from 1/43 (pictured Hunt class destroyers)? During 1943 there were both available.
192 Lt Cruiser CL - photo should be 16229 - of Greek Elli cruiser. She was sunk in 1940, but I guess it can be British support afterwards.
150,151 Patrol Ship, Escort Ship - alas, Greek navy had no such powerful patrol ships. One could be A-1 class patrol boat, with 3in gun and one MG (eg. weapon 144) - all lost in 4/41. Better picture is eg. 17090, better icon for such a small craft eg. 703
Only from 5/45 British Fairmile B ML's were used (1x40mm, 2x20mm, 4 MG) - might be photo 2069 from the British OOB
For a period between the two ships, unit 154 Merchant Marine could be extended.
That's all, I guess.