If you have material to show off, but your project isn't complete yet, stick it in the Editing thread. That's where the majority of creators convene and where you're likely to find good feedback.
Just as a warning since it's your first time—if you don't have content to show off yet, I believe it's against the forum rules to even make an announcement without supplementary proof of work. So as long as you have some images or something of your work to post with it, you should be good to announce in the Editing section!