CANBERRA DAY & NIGHT CHEMIST

This is what CANBERRA DAY & NIGHT CHEMIST was looking for in their logo design

Wanting a bold simple yet modern logo that portray a powerful yet positive image. Only use dark blue n a darker yellow colour only, jade green added is ok if needed.

what i hv in mind is:
Crown on top, wrapping around a circle.
Inside circle, theres a small square.
Small square forms the centre of a big positive sign, all contained inside the circle.

Square dark blue, positive sign n crown both yellow.
Have a look at the Bank of China logo, something like that with extra wrap-around crown on top and blue/ yellow colour and the obvious positive sign to represent healthcare. But a modern version.
A jade green colour somewhere within the logo is ok if needed that extra colour.

If anyone is smart enough to somehow incorp the yin yang symbol or an abstract "S" shape symbol without destroying the logo theme pls do so. Read more