Erik--

To me, the Pyrocluster looks like a painting on the surface of a beaker, and not a brew inside the beaker.

Two suggestions?
1.) Get a background going that shows glass for what it is: a material that distorts and shows the background to the viewer.
2.)Try to show the edge of the glass. Glass has thickness, and if you can get the pyroclusters going clearly inside the boundary of the glass, then you got...um, ALCHEMY [img]/infopop/emoticons/icon_smile.gif[/img] !


My Best,
Gary