How to center

Hi Richard.

As always you have a few options to choose from:

1. You can upload image that would have 360px of width and equal distances on the left & right side.
2. Or You can use Custom CSS on that page only, for example

@media screen and (min-width: 680px) {
.sppb-addon-image-layout-image.image-fit > a > img {margin-left: 40px;}
}

I suggest (1) becuase your image has unevenly space on the left side, so it is difficult to center this image.

besides try to find better quality of image file. Then use graphic software.

To center that addon on the page, you have to create 3 columns grid, and put your addon in the middle of it.