Yes, a general review is always invited (even if you mention a specific aspect you want reviewed).
"Do I want feedback about any or all facets of the code?" means all questions are open to general reviews, even if you mention a specific aspect you want reviewed. Questions don't need to specify specific problems or parts of the code where improvement is desired.
If you think your code is as good as you can make it, please do post itthe code for review and learn from other users' suggestions.
TL; DR: Questions don't need to specify specific problems or parts of the code where improvement is desired.