I am pretty sure asking for feedback on your work will not be acceptable here, because such questions are highly open ended. But I noticed there is a site for code reviews where you can ask for commentary (errors, typos, ineffeciencies) in your code.
I wonder if we can start the trend here since there are a lot of good people who could really do justice to the work (or maybe a seperate meta site). On the other hand, it might not fit in with the Q & A spirit of SE.
Asking for errors, and suggestions, etc. might do it, though. I mean you're not asking for general feedback, just if you have some errors, or if something sounds better. The quality of users on web forums is really questionable. On facebook, everybody just comes up with "Good Work", "Nice", "Keep it up bro" and nobody really critiques your work.
Perhaps we could chase it on Area51. What do you think?