adding an image in a scheduled email dynamically

adding an image in a scheduled email dynamically

Project overview:

How do i add an image that is stored in a form using the scheduled email workflow. The image is stored in the "offer" form and when entering the customer info we use a lookup field to connect the image that will be embedded.

We enter order information into a form "Customer" so that we can send out a specific email XX days after the order shipped.

My struggles 
1 How do i add the embedded image in the email dynamically? Do i add the code in the email notice
2 when i rough tested when i hard coded an image link it the image did not show in the email and i do not know why?

Your help in explaining to me how to accomplish this would be greatly appreciated 

Rob