JSON to stretch images across top of gallery card

I am trying to stretch my pictures across the top section of my gallery cards.

I have tried changing the JSON on the image column and on the gallery view. 

My code has an area of img and one for svg. I am not sure if I need to apply the code one of these or both in some way. 

The closest I have gotten is applying JSON code to the img but it only moves the current image to the left and leaves a gap on the right with an image icon. 

Not sure what I am doing wrong but would love some help.