Receiver looks great. You have a LOT more patience than I do with welding. That is too much welding for me to even consider TIG, especially since the bumper cover hides ALL of your fantastic and laborious welds. Keep up the good work.

You may want to consider adding some gussets or re-enforcement of some sort from the backside of the reciever tube to the mounting plate. Since the reciever hole centerline is about 3-3.5" above the attachment point of the mount there will be a lot of force against that weld in the rear. A 1/4" plate from the top of the mounting plate bent and lap welded to the top of the reciever tube will greatly reduce the possibility of a failure.