I think you succeeded as I find the subject of your photo repulsive. They do look quite disgusting. Bit too much on the green and grainy side, but that's just me.
A little too high contrasty and grainy for my taste but kindof fitting for the subject and as a non smoker I totally get your message with this shot. 6 from me.
This is s good picture for garbage. However, it looks oversharpened on my monitor. I think a little bit of "grunge" looks good for garbage but this seems like a bit too much.