
Thanks, that makes it much easier.
My eyes are drawn to the components with the most ratsnest connections so I would endeavor to optimize their placement first.
Passives with a Gnd connection are much easier as you really only have to find a routing path for one connection as a Gnd is generally always close by. Any you can easily rotate them to make for simpler routing.
In the same way I look for crossed ratsnest connections like to D27 where you might have 2 choices, rotate either D27 or the IC 180 degrees.
The big green pad bottom right has a trace that goes clean across the PCB whereas if it was shifted up near C16 there are better paths for it's other connections yet vias and other side routing might still be needed.
Push, pull, jiggle and rotate one of two things at a time and pathways will open and become simpler, shorter and better.
R2, 3 and 4 need rearranging. NT4 can be flipped. C5 can be vertical....and so on.
Focus on the big stuff with lots of connections going to one place, especially if from adjacent pins all in a row as it's easy to simple route them rather than make things tight needing to find room for vias.
It might help to go into single layer mode rather than have to look at the complete ratsnest and things should become clearer.
Looking forward to your next iteration.
