Manfred, I believe this is the best of the glassware images you have posted. I am still attempting to understand the origin of each the reflections in the glasses. Very nice work!
Martin, you are looking at refraction, rather than reflection. Each glass has water in it and that turned them into crude lenses. If you remember optical theory, lenses will invert the light that passes through them, so things will be upside down and backwards.
Very nice work Manfred, that refraction in the glass (LHS) of the three reminds me of Battenberg Cake IYSWIM.
Is the material sitting on top of those three glasses a piece of glass, as I think I'm seeing refracted colours in its forward edge?
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That's exactly what it is, a small piece of tempered glass shelving. It's a bit longer than shown in the image; I cut the length down in Photoshop. It is sitting above the glassware a tiny bit as I had inserted a spacer between the shelf and glasses to prevent glass to glass contact and give a bit of visual separation. I Photoshoped that bit out.