Photo Noob
After you get the camera for the devil, go past the hole and take a photo of the green leaves/rock.

Bone Collector
After you get the bone near the skull at the passage to talk to the Devil.

Almost a profi
Take a photo of the puddle, that one after you take the photo of the cloud.

Advanced Photographer
After you photograph the apple.

Secrets
Talk to the devil about the strange light you saw in the wasteland.

What's poppin'?
After you take the photo of the mouse.

Best Employee
When you take all nine photos (plant + cloud + puddle + mushrooms [2] + apple + tree + flower + mouse/dummy).

Not in Scythe
After the boss offers the promotion, ask for some time to think, and use the scythe on him. He will eat you and the game will end.

The Grim Ending
Not sure how you get this achievement. I got it the same time I got "Not in scythe".

The Orb or not the Orb
When the boss offers the promotion, accept it. He will ask you to kill the strange light. Exit the room, and the light will be there. Follow it, and take its photo.

The devils advocate
After you kill the orb, return to the boss, and you will be the new boss.

Photographer Assassin
After the boss offers the promotion, ask for some time to think, and take his photo.

Blown up
After the boss offers the promotion, ask for some time to think, and take his photo [Blown up achievemnent]. Go to wasteland, and follow the green leaves, you'll meet the orb you've met before. Follow it to the entrance of the tower. Enter the elevator, and, if you have killed the mouse, you'll get exploded.

The Savior
After you used the bone with sap to lure the mouse, talk to it. After this conversation, you can choose to take the photo or free it. For this achievement, choose to free the mouse.

Interdimensional
After the boss offers the promotion, ask for some time to think, and take his photo [Blown up achievemnent]. Go to wasteland, and follow the green leaves, you'll meet the orb you've met before. Follow it to the entrance of the tower. Enter the elevator, and, if you spared the life mouse, you'll go through the portal.

La divina commedia
To get this achievement, you have to take all nine photos (see Best Employee achievement), but keep in mind I spared the life of the mouse, and didn't tell boss about the oracle in wasteland (I don't know if these are mandatory). When you enter boss's room, examine your golden statue. It will have a coin in one of the hands. Use scythe on statue to get coin, and throw it in well to get hemp hearts. When boss offers you to be the new boss, ask for some time to think, and use camera on boss. Now exit room, and follow green track until you reach the tower, enter and talk to oracle, and finally travel to the otherside. You will be in a colorful room, and there will be a hamster in a cage to the right of the screen. Use hemp hearts on hamster (its name is Dante), the game will end and you will get your achievement.

Q: How do I take the photo of the fruit?
A: You have to take it down first, by using a long stick (three small sticks + yellow juice, two sticks are scattered through the wasteland, the third one you by hitting the apple tree with the bone 2x)

Q: How to open the metal plate?
A: Combine long stick + clamp (you get it from the rocks in the scene between the skull and the metal plate)

Q: How to take photo of flower? It's out of reach!
A: First you have to open the metal plate, get the remote controller, use it on camera, and combine camera with stick+clamp.

Q: What is the use of the blade?
A: You can take it and join with the long stick. This will give you a scythe.

Q: How to catch the mouse?
A: Combine bone with yellow juice (tree), and use it on the rock.

Q: How to find stuff for the fake mouse?
A:

• The hairball: there's a shiny coin (doubloon) in the skull, take it, and throw it in the hole. It will spit out a hairball.
  
• Energy: the remote controller you used to photograph the flower;
  
• Key: combine stick with clamp with blade to get scythe. Use scythe on the open ground after the hole.

https://gtm.steamproxy.vip/sharedfiles/filedetails/?id=2612860117

https://gtm.steamproxy.vip/sharedfiles/filedetails/?id=2435679954

https://gtm.steamproxy.vip/sharedfiles/filedetails/?id=2314011325

Thanks!