What more could I do to share what I love?

[Phoenix]

I have written a story, called "Ghost Mirror" it starts when a portal opens up in Times Square NY, when the military sends in a portal they find millions of demonic creatures and then the portal emits something like a neutron pulse, everybody within three miles hit the ground dead and then the demonic army invades. After the human population is decimated to a mere dozen or so people. It isn't until they meet the books primary antagonist the truth is revealed, it wasn't an invasion, it's a recruiting campaign.

There is nothing short of my family that I love more than writing, I've shared it on Wattpad and I've developed a facebook page, but I could be doing more and I need some guidance on sharing it with others, What more could I do?