From the pictures,
Bland, spammy, and a simple design.
Try to come up with more ideas for colors instead of it being pure white, and try to make the design different.
It's not that it's duplicated that makes it bad, it's just when it's compared to something like this,
http://forum.blockland.us/index.php?topic=217463.0That building is duped with a roof, but the design is unique.
In other words, the exterior needs to be improved.
Also, I see a lot of spam, for example, the windows. Use bigger bricks than 1x4.
The quote from Badspot was simply trying to point out that you don't need to criticize someone's build just because it isn't on the same level as the best builds in the game. He never said you can't criticize it constructively.
Post more pics when you feel it loos like you want it to be.