U need to spend a bit time to put more details in ur work.
Not only building but environment also.
For example, ur tree look too massive, put people and cars,
the glass look matt and non-transparent etc.
I suggest u to study more about material and color scheme too.
I strongly recommend u should try human-eye level view first,
Much easier to do than bird eye view.
U have nice start,keep go on. π π