[SPOILERRR!!]
The first path after using map & well should be
right (then collect bombs, continue)
right
up (= the upper path, looks like it's going right)
down (ignore D'Oro, continue)
down
up (= that upper path back), then
left at the altar
You use the directions after the screen changes. OK that way? Guybrush will continue to utter things like "so far so good" if you're doing it right.
Second path
Use map with ALTAR this time
continue down
left (front path)
determine path with weather vane -> up
use flowers with well
weather vane --> right
left (exactly the direction you came from)
weather vane --> left
walk around symbol counter-clockwise
weather vane --> up
If I remember correctly, there are no sound-based puzzles in the following episodes, so we'd just have to get you through this one. Also, after completing these mazes once, they will be reachable from your map, so you won't have to repeat these puzzles. Good luck!