theGuru, I like what you're doing here. The spire illustration is casual, playful, less formal than the others, which I like. I commented to the group that I thought some look too much like bank logos. #149 is what I like best. Here's what's keeping it from being in the top 3...
1) The font doesn't work at all, though I don't mind the lowercase letters mixed in. Can you try some text variations?
2) The building shape makes me think more of a condominium than a business - I fear it might be confused for a real estate company. Can you experiment with the shape of the building, including the top of it? I definitely like the building in #149 and
#150 better than #130. But the shape just isn't quite right.
I really like the colors, the perspective, and the way you've lit up some windows.