This thread is resolved. Here is a description of the problem and solution.
Problem:wpml not showing translated image
Solution:please note the following notice when you add the transaltion within WPML->Media Transaltion
" Any changes you make to the text here will not affect any previous publications of this media on your website. This edited version will only appear if you select it from the library to be embedded."
Please go to Pages=>Edit your homepage and switch to the secondary language using the language switcher at the top header (click "edit anyway" on the notice) => scroll down and review your gallery, you will notice that you have the non translated media added , go ahead and input the translated media now and save the page
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