An honest question

I try to produce good works. I really in truly think I tell a very good story. But something must be lacking and I am wondering what it is. As long as it isn't an attack, I am wondering where people think I come up short in my writing so that I can improve. I have vision of finding an agent and a publisher or at least being mildly successful on my own. My goal is to make $2000 a month so I can live off of (right now I make 400 and I wonder if that would last). I sell about 200 books a month (so by math i would need to sell 1000 a month) on amazon. I could change prices, but I don't know about that. In what ways do you think I could improve my writing. Be honest. What would you like to see more of? What would you like to see less of? What work or passages do you think I hit the nail on the head? What works or passages leave you shaking your head and vowing to never click a link by me again?

Enemies need not reply, I already know your opinion. :)