Nice to see an Illusion/Morel install here on the site. Everything looks clean, though my one (constructive) criticism would be for the full sheet of Focal mat over the open parts of the skin. Was the customer's intent to keep weight down during the install, because by the looks of it, that sheet won't do as much for keeping the backwave contained as a sheet of metal would have been. Considering the low mass of the mat, it still would have the potential to vibrate, thereby adding potential for midbass cancelation. Again, it is intended to be a constructive criticism. Please don't be offended by the comment.