Hi Monkey, yeah, I agree with Nadia: my findings seem really obvious and every day to me, but that's because I see 'em every day! But because of conferences and things, I know they're not to other people - that takes me by surprise. Maybe it's the same for you?
Your PhD doesn't have to instigate a revolution, what you describe sounds fine to me anyhow. Your sup should be able to judge of your work is ready or not, so they shouldn't have let you go this far if the work's not ok.