Very pickup and play! Will be really easy to get to the table to try something. I do think it potentially suffers a little from FF's lack of travel/Fog mechanics, though I'm sure most Guides would be easily able to make up for this.
I don't know if the hexcrawl element of this really adds to the module. Apart from the detour to the Windy Headland, I don't see a reason that the party won't just run a straight line. Not stating this is a bad thing - just I believe it could really have been a pointcrawl with the same effect, maybe allowing for a different visual layout/imagery.
My only other observation (and I'm not treating this as a criticism - its too early in FF to consider whether this is a must requirement) is that in the limited official material, the Tricks given for creatures have been ways for the players to trick the creatures. It seems you've chosen a route more akin to the strategy and tactics of the creature.
That being said - really nice entry overall!