I might tend to tap the brighter lights (roof panels) down a half a notch or so....or, after more perusal, open up the lights on the bottom side of the structure just a touch to bring the whole building into more dominance. I like how it stands off the BG which has some beautiful tonal values.
Looks good to me, Ole. Nicely converted to B&W. Possibly a bit tight at the bottom but maybe you had to exclude something.
Ole, very nice...I like the subtle look of your image...Good conversion but I think it needs a bit more punch with brightening -- just a tad. Just my thought...