Opps,
In fact I am using most of the things your suggested.
I have jast looked at the glass definition.

M_Glass=    // Glass material
material {
  texture {
    pigment {rgbt 1}
    finish {
      ambient 0.0
      diffuse 0.05
      specular 0.6
      roughness 0.005
      reflection {
        0.1, 1.0
        fresnel on
      }
      conserve_energy
    }
  }
  interior {
    ior 1.5
    fade_power 1001
    fade_distance 0.9
    fade_color <0.5,0.8,0.6>
  }
}




Tim Nikias v2.0 wrote:
>Nice colors. Several suggestions:
>1. If you're not already using it, try variable reflection.
>2. A more detailed skysphere with nice clouds would
>be good. Slime posted a link to some image-maps
>recently in povray.general.
>3. The Photons-Effect isn't that visible, so unless the
>scene changes to something more dramatic (with
>scattering fog or such), you might want to try and
>drop it to see if it has that great an impact on the image.
>4. Do you either use absorption or fade_power in
>the interior of the glass-objects? That might give
>them some more depth.
>5. Scatter some more spheres around. You can see
>them in the reflections, and it looks almost like the
>only sphere present are those already visible.
>
>Finally: why 30 hours?
>
>Tim Nikias v2.0
>Homepage: http://www.digitaltwilight.de/no_lights
>Email: no_lights (@) digitaltwilight.de
>
>
>> Here I make some glass objects. If anybody can comment the image.
>> [P750, 30h,  photons, no FB]
>>
>>
>>
>
>
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