Jon,
#1 Your stroke looks good. I think the shaft lean just looks to be too much to you because it is different than what you are probably used to. You do a little forward press before the stroke and that puts the shaft and arm in a good one piece configuration. I would recommend incorporating that forward press motion when you wind your arms and hands forward. We are trying to remove slack before aligning the putter on line. Please check out Elk's video about "The Illusion" Video Vault # 296 in regards to shaft lean.
secretinthedirt.com/index.php/the-vault/...llusionq-episode-296
#2 After the club is wound to your left and you approach the target line, you should rotate clockwise from the waist up as one piece against continued counter-clockwise pressure from your waist down. I don't see that so much in your video. In your address position I don't see much tautness between the upper and lower body. When your stance is open it is easier to maintain a bit of tautness between your waist up and waist down. You can have a square stance as long as you maintain the "taut" not "tight" relationship between waist up and waist down.
#3 If the club is still too closed try a bit more right sidebend in combination with the tautness between waist up and waist down.
Good start with the technique. Everyone takes to this a bit differently, so give it some time.
Thanks for the video.
Craig