HI,
According to fengshui, in Logos there shouldn't be lower level in the end.
Like your building behind, there are 4 squares. It could represent your career life's ups and downs. Which in the logo it shows that in the end of the career life is going down. So it is not good for a long term logo. Gradient of Colour is also not recommended.
Believe it or not, Feng Shui might make sense some times.
Hope you understand.
Thanks :)