There, you will just automatically triger the image when looking through something. Here, don't go to bed right away, you need to head over to the MED part of the ship. This is still chapter 4, but you've now had a chat with the crew over dinner and have been bid goodnight by Zed in the Galley, after which you can wonder the ship. Next, is where you actually get the image. You guys will go to the showers after, which is WHERE you get the options to 'Don't look!' or (There's an option here to help him out or point to the mess, but it won't really make a difference if you've been playing the aggressive personality. auto-cook thingy, you guys will have a meal. In the scene where, after you do what Zed says without hesitating and go to the kitchen to fix the. This is the situation that triggers the image for no.17. This personality type will triger an option, which you otherwise don't get in chapter 4. The Steam version of the game also comes with achievements. Don't hesitate when Zed tells you what to do. The game has a CG gallery where all the CG scenes are collected after being unlocked. When you're on the ship and are trying to escape, dash into that airlock and get yourself some food when you're on ship. What I mean, is at the very start of the game? Stand up against the shitty step dad. (Sorry, this is really long, didn't mean to make you an essay to read through XD It just sorta happened.)
Obviously you only get this on Zed's route.