Adding an Excel Hyperlink Image to SharePoint

I am trying to save an excel workbook as .htm in SharePoint site pages but the images on the excel worksheet appear as Xs (see attached). When I save an excel worksheet without images it works fine. Any Idea what is causing this?

 

This is the video I used to instruct me how to do this. 

 

https://www.youtube.com/watch?v=kU95809DtMM&t=1s