If you had turn the box just a little bit to the right we would be able to see the "less" illuminated side of it & it would look much much better.
Nice colors & lighting tho!
Good luck.

I agree ... I must say that I tried many different positions for the box and the light (I must admit not enough), but mostly the same result appeared, or in some cases I lost the iridescent, perhaps with a second weaker light source illuminating the dark side of the moon, I say, the gift, would have been able to improve the final result ...
But I appreciated very much your comments, mainly because I consider you one of the leading experts in lighting here ...
thank you karaflazz...