Hello @Saadssk94 ,
I found myself needing to do this exact same thing.
I don't know about the inline image tag, but I attached the image file to the email instead.
Note you should be able to easily link / image tag the photo now that it exists in a location that is web link accessible.
What I did first is create an image file in sharepoint using the base64 data and then get the file content to attach to the email.
When creating the file, the content is converted from base64 to binary.
formula
base64ToBinary(items('Apply_to_each')?['crf61_deviceid']?['crf61_devicephotograph'])
Now when you get the file content you can attach in the email and there is a place for Attachment Content in addition to File Name.
