Author, per the greenlighting policy: https://scp-wiki.wikidot.com/forum/t-10629348/new-draft-forum-policies first-time authors seeking draft critique in the forums must get their concept(s) greenlighted in the Ideas Critique forum and/or IRC chatrooms.
Please first go to the Ideas forum or the chat, give a quick summary (for the Ideas forum, please follow the instructions in the required reading thread) of the concept you want to write up (don't link the draft unless someone requests it).
During the conceptualization stage, reviewers can let you know if something similar already exists on the site, and/or tell you if there is anything that would prevent them from wanting to read a full draft. These issues are more effectively addressed earlier on in the writing process.
If you have already received two greenlights, please note from whom and where you received them. If you would like to skip the greenlighting process, you can use the IRC chatrooms for draft reviews.