I made a Chilean Malbec from Toro Negro Juice last year and am getting close to bottling it (new juice coming the end of April). I need to rack it one more time and am wondering if there is something I can do to enhance it. I was thinking of adding some tannin to it to increase it's complexity. Right now it is a little fruit forward with a hint of dark cherry flavor. It is a little light in color compared to Commercial Malbec part of that is I am sure because of it just being juice. I am looking to make it bolder and have more structure to it. Any suggestions? BTW it is 6 gallons and has been bulk aging since since last May.