Here are some using the QHY600:
https://www.astrobin.com/fwgnd8/0/
https://www.astrobin.com/full/gnm4rj/0/
https://www.astrobin.com/full/3iaoag/0/
https://www.astrobin.com/full/r7jjca/0/
https://www.astrobin.com/full/8xni2c/B/
The M31 image is the most spectacular but some nasty halos around bright stars with some odd diffraction spikes in the FSQ106EDX4 images.
That most likely is the filters - their Baaders. Also same imager but using Tak CCA 250 does not seem to have the same reflections. They kind of ruin otherwise good images.
You'd have to wonder about the antireflection coatings on the camera window though.
I'd be looking for that defect in ZWO or QHY IMX455 images to see what's causing that.
Greg.
Greg.