Light box photos.

[Oldsdigger]

Light box photos that I've been working with.

 

[Semar]

Nice!
You're using a black background and a couple of boards for the surface, so when you want to illuminate the bottle through the bottom you leave a gap and center the bottle over the gap. All light comes from underneath; the pictures came out really nice!

 

[willong]

Light box photos that I've been working with.

All are quite nice! The bottom-illuminated ones are my favorites. I think they might be even nicer if bottle was positioned over hole(s) through the board sized close to, but smaller than, the outer diameter of bottle(s).