I used the standard x shaped brush that comes with photoshop and messed with the brush settings till I got the sparkle I wanted. Then I rendered clouds in the bottle, changed the levels, and set it to screen.
step 5 of 6
I added the label with an oval and changing the layer blending options. Then I added the words.
step 6 of 6
I added my finishing touches but I'm not sure I like them yet.