I have been informed in no uncertain terms that every first draft is terrible; currently I’ve sent it to some people I consider beta readers and am writing something in a very different style while I wait for a response from them.
Then I’ll go for my first edit and see if I can make it better, and on and on.
Thanks for the website links too; Critique circle looks particularly interesting.

If you’re anything like the rest of us, the first draft of your first novel is awful–even if you can’t tell that at this point. I wrote the first draft of my first novel in about three months. Then I spent about 21 months editing and revising that novel until I felt it was publishable and good. I would suggest spending a lot of time getting feedback, whether it’s from friends, a writer’s group, a workshop, or a freelance editor. Work, work, work on it. Also critique other the novels of other new writers so you can learn more about what works and what doesn’t work. I’ve heard good things about critiquecircle.com, and Critters.org is another one that focuses on science fiction, fantasy, and horror. Just be ready to throw out any advice you strongly disagree with!

The above is all just my opinion, of course. Congrats!