Like in the Mosquito in Amber, most of my attention was spent on normal maps, roughness and refraction settings to try to make this model as realistic as possible.
I actually had to create a secondary internal surface for the bottle, and also relied on clear coat options for the glass material in order to try to give the model a feeling of thickness.
To try to get the opacity right, I used refraction on the outer layer (normals offset checked), and alpha-blending on the inner one.
All of the modeling was done with Blender, but the critical part for the model aesthetics relies on Sketchfab materials and post-processing.
Another ship in a bottle
Has got no place to sail
To see the waves getting darker every hour
The stars have lost their power
In the sky
Beck, Ship in a bottle.
CC Attribution-NonCommercialCreative Commons Attribution-NonCommercial