Thank you for your submission, Dennis. I do like the circle part of the the logo and it reminds me of the sun. Plus, I have been noticing that I am drawn to circles. I also like the fonts and colors.
The image in #10 is a good Pilates image. The image in #9 is more reminiscent of yoga than Pilates. However, I feel like I have seen these exact outline images elsewhere. That is really the only factor driving me to rank these lower.