Notification fails to display image

Hello

Could anyone please explain what i am doing wrong, i am trying to send a notification with an image attached from a camera. the notification is working the with text coming to my phone however no image is being sent.

sending to a iPhone (up to date) that has the HA app, i have tried the below and both fail to send an image

data:
  message: " {{ generated_content.text }} "
  data:
    image: /media/nest/screenshot/front_door.jpg
action: notify.mobile_app_chris

i checked the image is in the folder above.

- service: notify.mobile_app_chris
    data:
      message: " {{ generated_content.text }} "
      data:
        entity_id: camera.front
        push:
          category: camera

any help would be great

Thank you