Is this hill too close to the foundation?

A few months ago, the developer of my community dug up the backyard. They had to remove fill that they put in a place where it's not supposed to be per the law. 

Is this hill too close to the foundation of the homes? The back of the red house is about 6 feet from the beginning of the slope and the back of the tan house is about 10-11 feet.

https://postimg.cc/gallery/Hn4ZpQg

Two of the photos are right after they dug up. Another photo is after a bit of grass started to grow.

If this is a potential issue, what are some options I have?