I have tried with TLS settings from version 1 to 1.2
Auto HTTPS rewrites on
Always Use HTTPS on
Cloudflare Flexible SLL plugin on
Certificate fully activated
www.superpoo.com.au padlock will not activate on explorer, Chrome or Firefox
All right, thats the explanation then. That certificate is perfectly valid for Cloudflare but not for browsers. Your issue simply is a DNS propagation issue and you still connect to your server directly. Clear all your browser caches and flush the DNS cache. Should that still not work, you will simply have to wait a couple of hours.