this is a fantastic macro...5.2? have the people on this site become that bad at judging pictures, or perhaps they're all looking for emotional impact from their milk shots.
good focus and depth of field. i really like pictures like this. There is a nice contrast and action in the trails/pattern on the glass. A small point though, it does kinda make me think it's an ad for Guinness at first glance. Milk's not really the first think it evokes.
GREAT MACRO. The trail looks like zebra hide. Is that butter milk?? Interesting indeed. I would make the background black and not the browntone of wood maybe?