It might be good to return and take a picture, or a quick video update, several days later, and add it to this video, so that when the mortar is completely dried we can see what the actual finished product looks like. Brick can be a real PITA with efflorescence and with how colored mortar often cures darker than it's expected to. That mortar looks brown while the rest of the joints look white. Maybe it's just an issue with the camera and lighting...