make a couple of open vpn client hosts accesible from open vpn server LAN

Hi everyone, i'm tring to make a couple of open vpn client hosts accesible from open vpn server LAN but i'm missing a rule of course.

openVPN Server is running on a pfsense
client is running on Mikrotik

i'm struggling to set the right rule to reach the bridge interface network of the mikrotik.
Anyways i can ping openvpn-out1 ip from pf sense with no issue.
I know that's just a couple of info...