>>96582244
assuming the hexes with one tree are light woods, and the ones with two are heavy. all these hexes will (probably) provide +2 cover and allow the unit standing there to avoid the LOS penalty for all the trees on level 0 ground (trees are 2 tall) unless their target is in/immediately behind the woods.

the 4 I marked appear to be the best spots on the map

Cool map, I like your style.