How this goes: You post a work of yours, finished or WIP, and then others give you critiques on your work. I do not mind if you post non-HM pictures or piece of writing. Just make sure that you only post pictures that are your own design and not any that are copyrighted or based off of copyrighted characters.
Also, if you post a work, it is highly recommended that you also give someone else a critique.
Even this is called Open Critique Day, I allow (even welcome!) for you guys to post and discuss on this for the weekend until 11:59 pm Sunday.