Looks good
We have two trailers, both have worked great. Last test was 250km's over 4 days with 100lbs in each trailer. Camping trip to the lake.
To test initially I rode in the trailers and yes exhaust is a problem

So are bumps and potholes.
We don't have the axel mounted kind so we use handle bar extenders, but off the back forks, keep away from the chain as much as possible.