Made in 2007, Sean Kenney's Mini Landmarks inspired me to build the one giant destroyed one. Though there is no building seven this features 6 of the Structures from the original World Trade Centre
Oh, a 2x2 scale model of the World Trade Centre. What you need to do is detail. Actually, there is no detail needed for buildings this small... so make it bigger.
Got to agree with the comment below. This is quite small and it lacks in detail. There are ways of improving it and keeping it the same size. Try to change the facade of the towers and tile the plaza. Small improvements could make a lot of difference.
I think it's currently too small to fit any real detail. If you made it two times bigger, you should be able to build pathways, roads, greenery, and building details.