IMO you should have loaded it on tehre w/ the motor in the front for better tongue wieght, also the trailer looks very heavy duty...
BUT since the rear axles are farther back on that trailer then there supposed to be,(there is a forumla to figure axle location for optimum tongue load/balance of the trailer in general)even w/ the motor in the rear of trailer, it still looks ,like to much tongue wieght.