Recently, Stack Exchange has allowed moderators to customise the wording that is associated with custom close reasons. Here I would like to focus on (by far) the most used close reason on the site, aka "homework". I have written up some short blurbs; it would be very nice to get some feedback on them from the community.
Note that none of these are actually changing the policy itself. It's just an attempt to provide clearer guidance for users.
Part 1: Close vote screen
Many users will be familiar with this text: it's what appears when you click on that "close" button, then "A community-specific reason". Instead of having one long line, we can now have two lines. The first one is a very short description, the second is a slightly longer one. See the screenshots below for a comparison.

My proposed text:
No effort displayed
This question does not demonstrate any engagement with the underlying concepts or an attempt at understanding them.
(I believe that the original homework meta post needs to be substantially rewritten, and therefore I would rather not link to it, but I am quite open to changing that.)
Part 2: Notices on closed posts
The following pieces of text are displayed on a question after it has been closed. Essentially, it is a more tailored version of the current notice:

From what I understand, different users will see different versions of this text:
- The post owner, i.e. question asker, will see (1) and (2a).
- People with the reopen privilege (≥ 3000 rep) will see (1) and (2b).
- Everybody else will only see (1).
My proposals follow:
(1) Close description When a post is closed with a single community-specific close reason, this message will be displayed publicly above any private guidance.
This question does not demonstrate any engagement with the underlying concepts or an attempt at understanding them. For more information, refer to the criteria for on-topic homework questions.
(2a) Post owner guidance Provide meaningful actions a user can take to either get their question reopened or have a more favorable outcome in the future.
Your question was put on hold as it does not show your thoughts on the question, or any attempts towards a solution. Telling us more about your problem allows us to help you better. Please edit your post to include more information: this can be your working so far, where and why you have gotten stuck, or the context in which your question arose. In particular, please provide a citation if your question is directly taken from a book or other source. More guidance can be found in this meta post.
(2b) Privileged user guidance Provide guidance for users with the reopen privilege so they can constructively engage the post owner and reopen the question if appropriate.
If possible, please consider improving this post by engaging the asker to ascertain their current knowledge, especially encouraging them to edit the question. Another way of helping is to make edits which improve language usage or formatting, which will increase the likelihood of the question being reopened in due course once the asker provides more information.