I ran out of gas for the my welder so I will finish up and upload some pics tomorrow. I did my d-rings similar to yours but with a bit more movement allowed front to back.
My basic ideas were to keep the bumper low profile while putting my winch as low as possible. The previous bumper had super good clearance but the winch blocked most of my grill. It was most noticeable on the dunes when temps would climb and have a hard time coming down. I dropped it almost 6" with this design.
I also wanted to mount an ATV winch under the radiator to use as a suck down. Although its not quite finished I am pretty happy with what it's turned out to be.