Regarding #7 and #8, I like the design, but I don't think the idea fits well enough with what I'm trying to get across. The font is cool, but doesn't say "authority" to me, and I like the tuning fork (as a musician), but tying this to balanced health is a little too much of a stretch. Thanks a lot for your submissions.
Regarding #14 and #15, These are nice and interesting ideas, but not quite what I'm going for. I like the crisper look of #15 better if that helps future designs.