Looking better, Gary, you're on the right track.
Focus next: TIGHT PLANK. Your legs are slightly bent there in the first capture. Pull up the kneecaps so the legs are tight. Brace the abs to go along with the glute squeeze. That will help protect your back.
Then, HOLD the plank as the bell falls. Second capture is as the bell is falling -- at that point, you should still be in the plank. "Play chicken with the kettlebell" -- hold it as long as you can while it falls, then quickly hinge. (keeping your eyes out on the horizon may help... looks like you're watching the bell which tends to make your body follow it).
As
@Pavel Macek teaches in his excellent video, think of the swing as a 4-part movement (explosive hinge-to-plank, bell finishes the float up, bell falls, plank to hinge to complete the backswing), intead of a 2-part (body and bell up, body and bell down).
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