The font in a nice choice but isnt that legible from a range, i suggest removing the black background that would improve it a lot.
My suggestion would be made the outside  ring and for bigger 
maybe add different shades of red/dark red inside the red circle like maybe a section of this...
the white outline maybe needs to be a bit thicker on the skull outline
and maybe make the skull a little smaller.
and this is a personal toutch so you proberly wont like it but maybe change the skull to this
again thiese are all what i would do to it if it were my gang logo so it is from my side so i dont know what you have in your head of your ideal gang logo but they are just some suggestion but other that that it look quite nice