I created some more bottles in Photoshop, but this time, I retained the transparency within the image. Basically I just didn't merge all my layers. I have found that if I retain my layers, then I can insert a background at a later date if need be. Here I have just added a spotted background, just to demonstrate that a background image can be inserted to show the transparency of a glass bottle. I may not always want to use a white background, so this should be a good resource file for the next time I have to design a bottle label.