Welp, finally drew this guy again, but not as bad...
(blue in the background is just there because my sanity, actually is not light)
Also, small coatl on his shoulder for his FR form, just felt like throwing him in there (coatl is not actual size, yes Thirty is about 9.5 feet tall, but he isn't larger than a coatl).
Glow effect is so crappy XD.
Also blue overlay kinda killed his brown shades. Also, if you look you may see something more organic between his teeth ;).

Art and character: PenyiarWolff
Coatls: Flightrising/Stormlight Workshop