here close up.. the reflection are very clear and reflect the world around in nice way.. without 50 light around that slow down only the work and rendering.. the secret is more in the right diffuse and surfaces as the light self.. Global light cast not real shadows.. you can get only one shadow from a sun and not 20 or 50 that are the bad effect of using to much light.. the max light in a day light scene is 5 to max 6 not more.. from what only one of the light cast the shadow..

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"Surrender to what it is - Let go of what was - Have faith in what will be "