unless we can see the site its impossible for us to tell you how to fix the problem.
You can share a URL in the Private Information field, only GP Support can see its contents.
Ok so the WP Image Block has no controls for its responsive behaviour.
My solution would be to remove the Image Block and set it as Background Image for that Grid Container – you can set the size of the background image to contain ( or whatever % is best ) and set its alignment to the bottom.