17 the star
Probably the easiest design so far. Make a cool starchart background, place the stars from the Chariot card in the shape of the Aquarius sign, and done!
Not much else to say about it tbh, so I won't.
Cheers!

01/12/2023:
Made white/black/gold variant, added texture to the background for this.
A point of note on the OG design: removed the water pouring lady from the Rider Waite variant, but made the stars depict the Aquarius starsign to keep that link to the OG design.