Feng shui apartment for Snake (Jan 1990) and Monkey (May 1992)

We bought an apartment where the previous owners, two married couples, were both divorced. Something we want to prevent as we are newlyweds.
There are many auspicious plants placed in the health and wealth according to bagua map for apartments. We also placed a large marriage photo in the living room corner.
We want to know if there is anything we can do to make this a more loveable, lucky, wealthy house and help improve fertility for us male Snake (Jan 1990) and female Monkey (May 1992).
Thank you in advance!