After picking up the Experiment Block Key, an Afflicted will bust out of one of the doors, the drawing is inside the door to the left of the ladder. If the Afflicted came out from the door on the right side, choose to retry from the main menu.
On the PC version, the Afflicted will always spawn from the door the player approaches first, so simply walk to the door to the left of the ladder after picking up the key.
In the room where Moira gets the crowbar, to the right of the blue door.
After the fight with Mutant Pedro, in the sewers Moira, Claire, and Neil explore, it's at the end of the route on the wall on the right, behind the two breakable barrels.
On the blue gate in the area where you first encounter the Orthrus to the right of the door.
In the first building the little girl in white is followed in to, look on the wall to the right of the second Sploder encounter. The drawing is close to the ceiling and smaller than usual.
After meeting Natalia with Moira and Claire, check the ceiling of the staircase before going down the slope leading to the Vulcanblubber encounter area.
Episode 3: Judgment
On the wall to the right of the shutter at the start of the level.
When in the Processing Plant, on the second floor's bathroom there is an Afflicted that comes out of one of the stalls. The drawing is on the wall in the same stall he was hiding in.
At the start of the Butchery, there is a room with a red barrel and an Afflicted patrols. The drawing is on the wall next to the red herb.
After the factory explodes and you're walking on water, the drawing will be on the wall to the left side.
In the sewers, after meeting an old man, there will eventually be a small waterfall. Walk past this and look immediately up on the wall in front.
Near the exit from the room with the tombs, on the same area where the Release Our Sworn Comrades file is located, the drawing is on the far left wall.
Episode 4: Metamorphosis
Immediately upon starting the episode, before interacting with the first door, look up instead.
Inside a bedroom, the drawing is on a large painting to the left of the bed, it's smaller than usual.
After pushing the small aquarium inside the same bedroom, the drawing will be on the floor where the pushed object was.
In the same area where the Workbench is located, go the right side. The drawing is on the wall.
After going outside the Tower and a coutdown starts, follow the path to the right and the drawing will be directly in front of the player.
In the final area of the chapter, large debris will fall, including two ladders that fall horizontally which open up a new path to the player. Upon steping on the second ladder, look left and the drawing will be on the wall.
The following are awarded from collecting Kafka Drawings: