(As for the OP Cool Creation is more for receiving feedback while the support categories are more for problems).
Try choosing a lighter color scheme would work better similar to photos online for inspiration. I would also some designs into the pillars so it doesn’t look like a bland cylinder.
The building Itself is good it just features very dull colors that don’t look quite interesting.
I would suggest to do some adjustments to the color. If you look at different photos on a bank, you’ll notice it features more vibrant colors try not making everything in entire color it kind of looks unappealing and not interesting seen you got black and white mixed together it looks alright but it’s just bland and plain.
I’d recommend adding a grey-ish outline around the roof frame and text itself touch it up a bit. You could also add objects at the top of the build.