This policy discussion is now out of date. Critique questions are off-topic on Writers.SE. Please look for more recent posts on this topic.
According to this, critiques about our work are now accepted if we ask for it under some conditions, clarified here.
Second point, non English speakers contributions are accepted too, and even welcomed as @Standback said here.
But what about a critique on a non English work? I suppose it's accepted too, but what we have to do to show our work when we can't translate it ourself? Translate it with Google Translate or similar, leave it in our language or both?