As you discuss with Embla what her mission will be, without coming to a conclusion, you're standing near the ambush site you've chosen. The party is back from the ledge outcropping, with is about SEVEN feet above the path below, so not very high. Still, low enough to lay upon and be hidden.
The three hexes that are best for seeing the trail as it approaches from the top of the map (the direction of the fires), are 0709, 0707 and 0807, the latter two offering the best line of sight. 0808 can see the trail up to the log that is laying across it.
The trees are thick, but not so thick they can't be moved into. I've depicted the party standing above the branches for ease of viewing. I could hide you all under the branches, but that's not exactly desireable.
Please assume that any hex that is more than 1/3d hidden by trees will require 2 AP to enter.
Right now, Willa and Petar are watching the trail. They will tell you right now that they've seen a creature coming, about ten feet beyond 0401, at the top of the map, just before the path turns into view (for the game's purposes, presume that any shot off the map is impractical]. You're not surprised. Presume that you have initiative. What do you want to do?