Hi Snapshot,
Thanks for you feedback!
My icon #159 represent relationship between healthy skin (light blue part) and its diseases (dark blue part).
Oval shape which I used there, is with the goal to represent diagnosis of skin problem.
I've used abstract style with clean and memorable look, which clearly reflects your industry.
Design #155 is abstract style in more freer form,
where I used light blue shape to create letter "D" and just filled it up with the dark blue coloured shape
(core). It also have symbolic meaning.
Any suggestions?
Thanks,
Bordo