Ok, so i dont have my references with me. But basically the reasoning is as follows:
Cramming too much data in a small space makes it harder to absorb
A human can separate things by using whitespace ...
It is a bit hard to tell, especially without seeing the final look you are achieving.
This is not an answer, but a couple of suggestions.
A. Keep the shadings editable as long as you can.
B. Use the ...