what exactly do you want to achieve?
here is how to embed a picture in a dashboard:
https://splunkonbigdata.com/2018/09/22/how-to-embed-image-in-splunk-dashboard/
or many answers here:
https://answers.splunk.com/answers/136162/add-picture-to-dashboard.html
the photo is in other directory : D:/
you have to put the picture in splunk like suggested above