Drawn on brown paper, with pens and colored pencils. 

FalloutFoxDraws was showing me a character concept of theirs that I fell in love with. A character made up of several orbs that act as processors, that control nanites that form a body for them. A synthetic Suulkie (a race of FalloutFox's), so to speak. So I really wanted to draw something of the type, myself.

After several hours of chatting, eventually decided on the idea of my character Kat, who is reckless in their experiments and curiosity, trying to replicate the effect to study it... and it getting beyond their control and rebuilding them into a new creature of that type. And I knew exactly what artstyle I wanted to try drawing it in.