Oooo sorry for the late reply I've been quite busy the past week or so.
I would take a little bit longer looking for a picture/render because with a low quality render, it'll probably turn out to be a low quality sig. I think the positioning is right but I cant think of much to do with a b&w picture. Just try and put more effort into the text and maybe some splatter brushes a bit like this
or you could try using some bigger shapes and curves.