Sketch from 2019. The Kecha Wacha Glaive's description makes a reference to Journey to the West, the old Chinese tale of Sun Wukong.

Rajang is well known to be an agressive giant monkey that can turn it's dark hair into a golden tone when enraged, powering up it's electric attacks, which is very likely to be a Dragon Ball reference. And Dragon Ball was initially inspired by the same old tale.