For the magician card, I wanted to lean more into the actual wizard element, rather than a stage magician.
This enabled me to use alchemical circles, a cooler outfit, and make his eyes white, to draw attention to his face.
I kept the infinity-symbol above his head by integrating it into the alchemical circle behind his face, and used the Rose Window from the notre dam for the bottom circle.

Lastly, I added curtains behind him to hint to the fact that he's a performer, and then added those curtains to the Fool card as well, considering they're both performers.

Edit 29.04.2021 cleaned up lineart and added color to curtains to bring in line with the rest of the set so far
Edit 13th of July 2021: Changed the sword with the one of the Justice card, and the wands with the staff of the Hermit card. That, along with the use of the pentagram in the devil card, and the grails in the Temperance card, ties everything together nicely, I think.