I know the rudder is on the transom, the picture showed that much. What I was getting at is where on the transom? Is it in the center, behind the prop? Is it offset to the left or the right of the center? A shot of the whole transom would be helpful as rudder location is actually something that can be very important. For example, this is where the rudder bracket is on my scale Elam Plus:
And, by the same point, this is where it is on my redesigned Dumas Pak
In both cases, the rudder is not behind the prop since the prop and shaft need to be removable for replacement and servicing as well as leaving the rudder in "clean" water for better response. The reason I put the rudder on the left side of my Pak is so I pull the pushrod rather than push it. Unless the pushrod is heavily braced, it can bend when pushing it to turn the rudder at speed