Jake,
for me this has something of hesitation what to show - the size of the hall or the domination by the towering rolls.
The grain which worked fine for the portrait is less of use here from my point of view - others may differ.
The fine structure of the roof and the tonalities from the light on the roll is dominated by the grain.
I remember that using a Fuji Neopan 1600 I had better results in such light - at just one EV less sensitivity.
Best regards,
Michael