ok i finished it, here is my thoughts and observations. (i hope its understandable if you didn't understand anything just tell me to explain more sorry.)
bugs:
when you are supposed to repair the book in library, you can end up with 2 complete book, and next time you see him you give one book and you get stuck.
when you are supposed to see the gunner for opening your medicine box, if you go to armory, scene of third pistol repeated and woods offer the forth pistol quest again, i didn't follow the quest to see what will happen afterward.
after i picked up the head cutter axe in mine the artificial door don't automatically load to the mine 1, you will pass the door and wonder in oxbay mine (i guess), additionally you can loot two of 4 skeletons there.
when 4 deaf canoneer want to move that thing on the cargo door, there is a chance that you get stuck in your place, you wont be able to move at all, even if you go to the cargo hold.
when you land on balcony of tavern, when you are coming out of fried egg window, almost at the end of game. woods give you his first quest all over again, you should not talk with his daughter afterward, since she is waiting to be rescued.
pirate merchant in nevis still wear the brotherhood clothes, ship merchant wear nothing.
what i think should be added/removed.
lost chest key when you are going to deliver medicine chest to pirates seems unnecessary, how the key end up in the tower is another question.
action part of game is almost non existance, adding some action based btw some puzzles can make the game more interesting.
you were almost thrown out to your last prize, no one talk to you, no one tell you what's going on, you just get lucky and find the alchemy book, you get lucky again and when you light the Candle you hit f3 and find the key.
compliments:
man i dunno who you are, its the first adventure game that i actually liked to play all alone, what you did was
amazing, most of time i was laughing, and other times i was clapping, and cheering you. i was saying man how much time he spend to make this thing work.
technically with such a complicated quests you did a awesome work, the game have very few bugs, i was never sure i am doing the right thing but well it worked to the end

.
i should congratulate you, creating some of the puzzles is hard even in your mind. personally i hate meaningless puzzles which seems to have no purpose, but i really loved your puzzles, somehow i feel they belonged there(except rare occasions.)
sense of humor: i never laughed this much in a game, every few step you had a surprise, many thanks.
request: i really like to see what will happen afterward, i want that jrh dialog. i also offer my help (well if i can do anything in the first place) if you think i can do anything to help like testing or anything else just tell me.
many thanks again.