This thread is resolved. Here is a description of the problem and solution.
Problem: I want to have different product images in other languages.
Solution: There are 2 approaches that solve this issue: 1) Switch off our translation editor (through the switch in the "language" section of the product page) and then manually change the image in the other languages by switching to them through the language switcher on the wordpress top bar.
2) Use our Media translation plugin to translate the image so it shows a different one depending on the language as explained on the link below
Relevant Documentation: https://wpml.org/documentation/getting-started-guide/media-translation/
This is the technical support forum for WPML - the multilingual WordPress plugin.