The size is good for the kind of “mini” A&A game being considered: 16 territories (I’m including the Aegean Islands, but excluding neutral Turkey) and 20 sea zones. Enough space for decent maneuvering, while at the same time compact enough to keep things simple and short, plus ample opportunity for both land and naval actions (with air support in both areas).
A couple of typos: “Centreal” rather than Central Greece, and “Agean” rather than Aegean. And I think the Albanian capital is supposed to be spelled Tirana.
In terms of the rules, a good approach might be to have four nations: the Greeks and the British on one side, and the Germans and Italians on the other. That way, the basic two-player game could potentially be stretched into a three-player or four-player one which could perhaps serve as a miniature introduction (for new players) to what a multi-player game like Global 1940 is like. Four is a manageable number at this scale. The Bulgarians participated in the Battle of Greece, but adding them would complicate matters unnecessarily, as would splitting the Commonwealth forces into U.K. and ANZAC components.
Anyway, looks good so far, and the revised map improves nicely on the first version.