Looking at a lot of gallery stuff, it is dawning on me that pictures with "natural contrast " like this one always look good and also sharper. You may say this should be obvious to a B&W shooter but maybe a lot of us are less aware of this than we should be. I think I am one of those who needs to think about this more before I shoot
Now this is why I post in the critique gallery. With the sun just out of the frame on the left, the palm photo is underexposed because I overcompensated for the brightness. This one is nicely dense and much finer grained. However, I cannot understand why an underexposed lighter area in one neg should have different grain than a properly exposed darker area when both areas come to about the same density and the negs were developed together.
pbro...I have no experience with TMY and I stopped using D76 when somebody advised FG7 (which may not even be available anymore...I use Rodinal 1+100 now).
A press photographer told me (when I was a kid and still using D76) that it was rarely a good compositional idea to include a lot of sky unless it was interesting for some reason (e.g. clouds). Also, I never bought into the old disco-era notion that it was a crime not to print the entire frame...that press photographer believed religiously in cropping. He would have been happier with more of the dome, which everybody loves, and a lot less of the walkways/rooms because nobody cares about them (or that huge air conditioning unit). That would suggest shooting from another angle, ideally with a longer lens or cropping heavily with that 80.
Not knowing about D76/TMY, I'm just guessing you'd be better off with more dilution and longer time.