Image size maxed out at 620px

Thanks for your help Themato Soup team!

I’ve uploaded an image that is 900px wide to fit in the single column page layout. However, the image won’t go larger than 620px wide. In fact, it looks like the image is being resized.

For reference, here is the page: https://www.empoweringthe80percent.com/personal-branding-toolkit-2/

And the picture I’m referring to is the woman looking out the window.

How can I fix this?