This version looks good in the red. The one with the ribbed structure looks better in the blue-grey.
Personally I prefer the one with the ribbed structure.
Also, a suggestion -- render something at 256x256 but in a perspective mode like OP1 BMP's 845 - 849b -- I'd like to get something similar for all structures (for the structure inspection panels) -- Doesn't need to be special, but I want to illustrate a point. The need for the added details will be needed for these closer views (if you could render both versions of the warehouse like this we could compare between them).