Typically, if a question is closed, it will show 'closed by - list of names'. I'm not sure why this is not the case for this question.
This is working as intended. You cannot (easily) see who closed your own question
We have clear and scary examples of times when users lash out at specific closers because their question was closed or deleted. Up to and including requiring police intervention or having their employers called because of closing someone's question. This isn't OK. I'd much rather a user be angry at the system for closing their question than at a person.
Update: We've changed the post notices for question askers so that they do not see the usernames of close voters listed - this includes askers with the close/reopen vote privilege.
We considered making it so that post owners with sufficient rep could still see the list, but decided against it primarily for cost/benefit reasons: the way our code is constructed right now, a lot of other code relies on a person being classified as either a post owner or a privileged user, but not both. This separation makes sense in most places, just not in this instance. And because the likelihood of a higher-rep user having their question closed is lower (and they’re more likely to know how to access the voters if necessary), we felt that this was an appropriate tradeoff.
We discussed changing the post notice language for users who do have permissions but decided to leave it as-is, so that still indicates that both the post owner and those with close/reopen vote privileges can see the names. Because post owners are still able to see who voted to close/reopen their question by going into the post history, it would be inaccurate to say that they do not have access to that information. It's merely harder to reach (and lower rep users are much less likely to find it).
We think that the small change we've made is the best first step in solving this problem. It makes it much more difficult for users who might be angry to lash out at voters, while still being honest with voters that the post owner can see who voted on their post. And we're definitely open to feedback on this approach!