Gorgeous!
I'm really an Overwatch fan but I am a fan of rich, colorful, detailed skybox options! Even without a proper CUA environment atom it's still awesome to use these with cartoon-y models; sets the mood better than overly-realistic (or conversely, under-detailed) alternatives.
...and of course, as you say moyashi's PostProcessing plugin is perfect for these too. Combined with the legacy Colortone CUA it really amps up the saturation to help you break free of the standard VaM "look" entirely.
Thank you so much for your continued efforts!
