A) The mind is a puzzle, and hypnosis helps with breakthroughs in that puzzle.
I used the Green/Brown colour scheme to represent the health/wellness association.
B) The "HC" Circle, for this one I was thinking of a sunrise, your mind opening up. Something that was a bit more corporate-styled. I like the orange, but I don't know that it fits the brand.
C) The "Brain Tree" -- Trees represent Life and the Brain is what makes our lives what they are. I also think this image is a nice way to depict a brain and that imagery without being too scientific. The cursive style font relaxes the brand image and makes it feel more welcoming.
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When creating a logo, it's important to remember that it'll need to be used in a variety of formats. Web, Print, Embroidery, Screen Printing... so limiting the colours and making sure everything is smooth and bold is important. I try to limit all of my logos to two colours, three max if it's requested. Occasionally, if I'm doing a "glossy" style logo, I will create a secondary logo to be used in Print.
Which would you choose?