There are several issues. Forwarding, as well as your second site’s setup.
Forwarding adamblythphotography.com forwards properly. Its “www” record however does not. You are probably missing an asterisk in your page rule. Post a screenshot of your page rule list.
Setup adamblyth.com.au does not seem to be set up properly either. Are you sure that is configured correctly on your server? Do you have a certificate there? Pause Cloudflare for now and try to fix the site first.
Could you explain the issues you are seeing with adamblyth.com.au? It is a SmugMug website, I don’t have access to the server. I’m not certain there are server side issues, perahps I have set up Cloudfare incorrectly for this site a well? Note I do not have any Page Rules set up for this url, perhaps I should?