I'm very sensitive when it comes to hauntings. The 1st place you went to its not that bad but the forest it gave me lots of goosebumps. I can feel it's not even frequent by humans. Nice video plus you are very bold to go alone.
I'm a little late for the comment, but I think for 長洲, maybe you can stay a night on their 'not so popular' 民宿' to stay, my friend and her mum heard woman laughing at the middle of the night and they checked out the next day cos they booked for 2 nights.