Imho this is a cool idea - but of course a game can only be misvalued if you never played it.
What tools you use to play the game? Are there cards, cubes and how do players take turn?
To the 'mapping' part:
I already got, that you plan to take a new map (still aiming for taer's?) as underlaying, so that this one is a bit blury doesn't matter.
But imo there are some dissonances in the symbols you've used. Food, the shields, etc are grainy whereas the ancors are
only black and clear such as the 'castles'.
Nevertheless quite a good start, I'll keep an eye on that