PS HELP! Does anyone have a good photoshop "grapevine" brush

I have been searching the internet for a couple hours and cant find anything that looks good. Im installing 3 windows on an upstairs wine cafe' that are about a foot in height and around 2 1/2 feet in length. The windows are tinted a dark dark black and we will essentially etch a design into the windows which will allow a backlight to shine through.

Currently this is the best that i can come up with.

You're probably better off finding a vector image of a grapevine, look on one of the micro stock sites.. then just open it in photoshop and make it a brush, but really, for stuff like this you should be using a vector program like illustrator anyway. It's going to give you alot more latitude to adjust things to your liking..