No problem, I thought this shoot looked really good and stood out. I also like that you haven't gone crazy with HDR like some Urbexing artists do. It looks all nicely done and your can see the building for what it is.
I use a tiny bit of HDR because like you said it can help. However when you can see the HDR so bad in the preview it is probably a bit too much. I like it to help show off details because buildings can be dark, I don't like over processing if that make sense.
I guess like you, I like it to look as natural as possible.