Multiple photo upload zone e.g. before photos and after photos

I am working on an app that lets users fill in a report of the job they have been given. These reports are generally of physical assets. e.g. a fish tank.

In the report, the user has to show proof of the job completion by taking before and after photos. For this, I was thinking of having two photo upload options one for before photos on like Step 1 and after photos on step 4. See image below for reference.

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After the user publishes the report it then displays all the data on the report profile. Where I have different modules displaying all the data. One of the modules is IMAGES where all the images uploaded from before and after are displayed.

enter image description here

I need help in:

  1. What is the best way to get the users to upload or take **before and after images**
  2. How to better display the before and after images.