Hello guys, this is my first attempt to create a full DnD encounter map. Any criticism or suggestions would be appreciated.

Synopsis: A mysterious cult is kidnapping citizens for nefarious needs. All clues lead to an abandoned sewer system bellow the city. Brave adventures need to venture inside and rescue the citizens and defeat the cult.

Encounter A

A1. This is where adventurers enter the dungeon

A2. Empty hallway that that splits in two.

A3. Collapsed hallway, there's nothing here except rubble and a few corpses

A4. A few homeless beggars gather around the fire (RP event)- You can ask them about anything storage happening in the sewers.- They tell you that some strange people have been passing through.- One of the beggars, an old woman offers you a sidequest to find her missing granddaughter.

Encounter B

B1. Adventurers pass over the wooden plank into an empty hallway. Door leading north is locked and there is no keyhole.

B2. The room is flooded but there is a path over a plank but a couple of slimes guard the way (combat 2x slimes)

B3. There is a switch on the wall that opens the northern gate.

Encounter C

C1. Adventurers pass through the gate and see a corridor that ends in a dead end. A stream of sewer water is flowing in front , you can see what look like a drawbridge in the distance. (1 trap)

C2. Room with couple of cultists guarding a chest and a switch (combat 2x cultist) -Switch lowers the drawbridge half the way.

C3. Long hallway ending with a grate through which you can see a second switch (1 trap)-Switch lowers the drawbridge half the way.

Encounter D (possible puzzle but I'm bad at creating puzzles)

D1. After you pass over the drawbridge you continue through the empty hallway until you arrive at the D7 bridge. (1 trap)

D2. A storage room guarded by a couple of cultists. (combat 3x cultists)

D3. Prison cell with one skeleton

D4. Prison cell with 1 skeletons chained to the wall

D5. Prison cell with one skeleton.

D6. Prison cell with one chest

Encounter F

F1. After passing over the bridge you enter into a long hallway, one locked door going north, 3 prison cells on the west side, a room in the east and a bridge going south ending with a door that has no keyhole.

F2. You find two missing citizens chained to the wall in a prison cell

F3. You find three missing citizens chained to the wall in a prison cell and among the a little girl (sidequest)

F4. You find three missing citizens chained to the wall in a prison cell and one of them tells you that he will tell you the password for the door over the bridge if you rescue his daughter that was taken north. He tell you that you need to enter the torture chamber to find a key.

F5. Torture chamber with two torturers torturing a man chained to a table and two cultists watching from chairs in the corner. combat (combat 2x cultist 2x torturers)

Encounter G

G1 After getting the key from F5 you enter a room that look like a tavern with multiple cultists enjoying their meal (combat 6x cultists)

G2 Storage room where you find three chests (2x chest, 1 mimic) and one young woman. (woman that man from F4 asked you to rescue)

Encounter H (boss room)

After getting the password you cross the bridge and enter the room that strangely looks like a temple to some evil god. You see couple of cultists chanting and getting ready to sacrifice a woman chained in a magic circle. Evil looking man sits in a royal chair looking down upon you. (Boss combat 4x cultist 1. Cultist leader)