CMS hover interactions

Hi there,
I’m designing a site for a client and am looking to create a hover interaction which fades all items except the one hovered over. I have a text list on the left (pulled from cms) and an image grid on the right (also pulled from cms). I managed to get the hover interaction working on the text by targeting only siblings but I can’t find a way to target specific images from the grid. Any help would be much appreciated. Here’s a figma screenshot of the desired interaction for reference: