I think you harness looks good.
You do need a noseband though.
Before I sign off on it being the best it can be, there is a couple adjustments I would like you to try. I have no idea if it will be better, could be even worse, but it is worth seeing if it is better.
The breeching looks okay from the side but wonky from the behind so it is worth a try making a few adjustments..
Tighten the back strap and loosen the crupper first, then play around with the breeching straps some, tightening and loosening straps and seeing if it gets better.
What you have is good fit, but it might just get better. BLUE HARNESS.jpg