No — once you submit your inspection, you cannot add more photos directly. Contact the organization that sent you the inspection and ask them to send a new request.
Why? Truepic Vision locks submissions marked as finished or past the expiration date set by the sending company in order to preserve the verified integrity of the inspection. To add more information or photos, reach out to the point of contact who sent the request. They can send you a new link, and you can capture additional photos and videos.