I don't know about anyone else, but the first thing that jumped to my mind was a prospectors pan. I don't know if I would call it an illusion so much as a visual cue, but it's a nice pic anyhow.
the lighting is what makes this shot so serean (i may not have spelled that right but it is 2am so forgive me) anywho the focus is great and the image is golden...not only in the litteral but really this is a beautiful shot.
I like how the reflection forms a ying-yang-ish pattern. The soft colour is great.
I probably would have cropped the top inch off for a more balanced composition.
First Impression: Nice one. Golden colours. Balance maybe a bit heavy on the dark side.
Was I fooled? The bubbles? on the light side look suspended in the air. Very nice!
Please tell me coffee is not an illusion!! I rely on it daily! Seriously, though, I'm not quite certain what the illusion is here, bit I may be a bit slow.