[cacao] Logo

All,
During the TC meeting today it was a discussion about the CACAO's logo and therefore I designed some versions of it. I know that's not an easy task to decide/agree for a specific logo for the CACAO but here are some design alternatives I came  up tonight. Please find attached a .PNG file with some explanations. I am open to your suggestions/comments.
Note! It is authentic logo design.
Best,  Kamer Vishi
Security Researcher and PhD Research Fellow
Research Group for Information and Cyber Security (SECURITY) - SecurityLab  University of Oslo  Norway