Pokemon and Yu-Gi-Oh energy with a fully original style is a great brief, and good call on no AI. I founded ComposerScout, a free spot where game devs post who they're looking for and artists who fit get it in their inbox. Posting takes about a minute, you can tick Human-made work only so you only hear from artists who draw it themselves, and it's free to be on, I don't take a cut of anything you pay people. We'd love to feature your TCG there: https://composerscout.com/#post