At this point the door panel is only held by the door lock and handle cables that run through the blue plastic and into the door frame cavity and on to the door actuator.

First lift the cables out from from the opposing large grey plastic standoffs at the top of the door panel.

Next lift up on the white and green plastic cable pieces at their entrance into their respective slots in the black plastic door handle mechanism housing.

Finally, remove each cable end ("ball") from its respective captive slot. This is fairly easy by just moving the end leader around until the open portion of the slot is accessible and then pushing the end downward and out of its captive slot.