I wanted to make a thread for people to post their artistic endeavors that's nonliterary. Could I get away with making it in "The Gallery"? Or should I do it in off topic?
If the thread is there to spark sharing and discussion, then Off Topic may be your best bet. The Gallery tends to be the quiet section where people willshare their own written work or art requests, but I wouldn't say the traffic there would aid in something like a music thread.