This is meant to be a documentary photo rather than an artistic photo. I always enjoy the various colors of white wine when drinking it and have had this shot on my to-do list for quite awhile. Light shines through white wine more than red wine, making it easier to appreciate the difference in colors.
Just to put color into perspective and to add a little whimsical humor, I included the apéritif on the far right. It's also made from a white wine grape though the dark color is probably the result of fortification. It's a Madeira, which is fortified with neutral grape spirits (distilled wine), probably brandy but I'm not sure, to increase the amount of alcohol.
The wine grapes from left to right are riesling, chenin blanc, chardonnay and sercial.