First Attempt Cafe

[Wokka]

Hi,
First reall attempt at a cafe interior using C4D radiosity. The settings are low at the moment and I still need to add more 'stuff'.
Lighing is one omni shadow for sun, one sky object and several small onmi's for lightfitings.
I'd love to get more depth into the image but can't seem to get any floor shadows etc.
Any ideas?, comments would be REALLY appreciated, espescially from other C4D users.