Troubles connecting to the firewall via WAN connection to the GUI

[StevenP]

Hi
Using Opnsense on VMs through Openstack.
I am having troubles enabling firewall rules to allow connecting back with the GUI via the WAN interface.
I have the screenshot attached of the rules.

For some reason it will not allow the GUI to come up. The error in the logs come up as, default deny. I am not sure where to look or what else needs to be configured.

Thanks