Did you add the graininess in or was it inherent? If it was added, my 2 cents worth would be to take it out.
Edit: Oh by the way, the can being in the pool table while the shot is being lined up wouldn't work (in the theme I mean) since there is the possibility of either the cue ball or the 6 ball hitting the can thus spilling the beer all over the felt would be a bad idea! Above all, "Last ball" should be 8 ball which is black.