Hi i really want something creepy for my avatar i mean background that will fill this empty :) any suggestions?

There are all sorts of creepy backgrounds. Try going into the wardrobe and clicking where it says "Your Wardrobe" and select "All Subeta Items" though, I would also recommend clicking "hide CWs." The samples below are just a small fraction of what's available:

thasnk you i am new here so i cant find myself :) thank you for all tips i will use them :)