I recently started making my own Tinycards deck (with pictures on one side and Greek on the other) which mostly matches up with the Duolingo track. If you'd like to use mine, here's the link to my profile: https://tiny.cards/decks/MNkvNXC7/greek-foods.
Nice pictures. I'm afraid there's an error in the third picture. The picture shown can be either "μεσιμεριανό" or "δείπνο". "Δείπνο" means "meal" and "μεσιμεριανό" "lunch" is, of course, a meal. There are a few other issues. The idea is laudable and the photos beautiful but it needs editing.