they look nice! We would love some individual shots of them as well!
Have we seen finished photos of the loft, inside and out? How big is each section you have, and how many sections do you have? You really did it right (for racing that is, people can easily keep a healthy flock in a small loft) from the start! Good job!
I was reading a very old pigeon book, (the one that got me interested in them at the first place) and it said to pluck one tail feather and it will shake off the illness

...
I'm sorry you lost the bird,
@Pigeon28 ..
next time you get a sick bird, just pluck a feather off the tail

stick with it! It's worth it. Eventually, you will have narrowed down the best guess with the best immune systems, and no longer have many problems.
I purchased some yellow tiger grizzled off of a man who has raised them for years, and he hasn't had diseases for over 5 years, until this year, as he brought in new birds. He even quarantined them! But, his birds are pretty much immune to everything in his land at this point.
some beautiful bald head rollers? I like them!