Some time ago, I found a video by one Elena Baryshkina (YouTube Channel: Graphic Design with Elena) that walks through the process of converting 2D graphics to 3D using Adobe Illustrator. Thought it was pretty cool, but didn't explore it further. However, when another artist I follow, Will Paterson, put out a video today on the very same topic (talk about timeliness!), I thought to myself, alright, I better take a closer look at this.
One tip I would give is to make sure to separate your graphic out into logical groups before applying the Inflate effect. Also, while it's totally personal preference, I like to take down the Metallic slider all the way to 0, and the Roughness to around 0.60
https://360.articulate.com/review/content/32b5ab66-deab-42e7-b6fd-a0d8aaca18bd/reviewVideo tut by Elena:
https://youtu.be/_coFmqQ2ViQVideo tut by Will:
https://youtu.be/tSWu817nZjsGraphic Source:
https://storyset.com/ninja