Well, it sounds like you have just about everything in order. Involving your readers in the experience is the best way to develop your writing skills, and to find out what readers are really looking for in the next BFD of noveldom. The only things I would add are:
1. Always end your hub/chapter with a cliff hanger. That's the best way to keep your readers interested in continuing the story all the way to the end.
2. Don't force it. If a chapter/hub isn't flowing right, save it as a draft that you can come back to later, don't delete anything!
3. Get a coach. Even if you are rock solid in your creative writing abilities, it's always worth it to have someone there when your frustrated, unmotivated or you've gotten stuck with writers block. There are plenty of coaches who write here on HP, and I am available as well.
Just some things to think about!
Good luck =)