I can't read that language, but you should remove all those secondary DNS servers, assuming those are the default servers. Keeping them will allow your clients to bypass pi-hole.
It seems you may be stuck with the current configuration, then. Your pi-hole will only show the router's IP, unless you statically set the pi-hole as every client's DNS server.
Your other option is to let pi-hole handle DHCP. You'd then see all clients on the pi-hole.
You would be able to achieve this query structure with pi-hole handling DHCP.