The demographics of my target audience include both male and female (but primarily female), older adults, athletes, stay at home mothers, anyone who is likely in pain and wants to improve their health and/or performance. They will likely have advanced education and will have tried many other forms of fitness.
As my practice is based on physics, the use of mathematical symbols, gears to represent biomechanics, or representing flow in the body would be great. If using a person, proper alignment is important with my profession. Key features include: vertical sternum, chest down not thrusted out, at least the front knee straight, natural arm swing-one arm behind the body, neck not too extended, neutral spinal curve--not exaggerated but obvious healthy spinal curvature, shoulder blades flush--no winging of shoulder blades, elbows to sides and pointed behind. The use of subtle lines/arrows/levers to suggest proper alignment and the physics application would be fabulous. Maybe use triangles/angles? A plumb line demonstrating alignment from ears to shoulders, hips, knees, and heels? Totally open to other ideas as well.
Note that I don't want my business to be confused with chiropractic. :-)
My slogan is "The Biomechanical Advantage for Health and Performance".