63 and 64 are real nice. I wonder if it would be possible to make the disign of HMS more of a square than a rectangle. If you look at the logo for the Getty museum in Los Angeles, you'll see what I mean. Thank you!
I like 67 too. These are all good and I wouldn't know what to suggest to improve on them. If you are open to submitting more, I would like to see some more abstract / creative and colorful images that convey 'wellness' or 'holistic achievment' (if that makes any sense). Thank you!