My lawyer made me add a license agreement (full text below). The short version is you're guaranteeing you own the image uploaded, I'll give you a deck if your card is selected, I'll give you credit, and you still own all the rights to your image to do whatever else you want. If you have any questions about it or are concerned by a lot of legal text, please email me and we'll sort it out.
This Artist Licensing Agreement (the “AGREEMENT”) is entered into effective on the image submission date, between the submitter (“Artist”) and Akiva Leffert.
Rights and License: Artist hereby confirms that they own the copyright to the Images (defined as the image, uploaded concurrently with the execution of this agreement, including any image, graphics, digital assets, or digital images that may be uploaded), and that they retain the right to provide a license to Akiva Leffert to use the Images as described herein. All Images and rights relating to them, including copyright and ownership rights in the media in which the Images are stored, remain the sole and exclusive property of the Artist. This license provides Akiva Leffert with the international right to reproduce, publicly display, and distribute the Images for the purpose of producing, selling, and distributing one or more Tarot decks.
Compensation: If the Images are selected for inclusion in a Tarot deck, the Artist will be entitled to receive one copy of the Tarot deck from Akiva Leffert. No further consideration for the license is contemplated.
Cancelling this Agreement: If the Artist wishes to cancel this Agreement prior to 1) finalization of the Tarot deck or 2) within one month of execution of this agreement, the Artist must contact Akiva Leffert in writing within this timeframe. If the Artist seeks to cancel this Agreement outside of this timeframe, cancellation will be at the discretion of Akiva Leffert.
Artist to be Credited: If the Images are used, the Artist will be credited in a reasonable and visible location, whether on the card, on the packaging, or on printed material accompanying the Tarot deck.
Relationship of the Parties: The parties agree that neither Artist nor Artist’s employees or contract personnel are, or shall be deemed to be, employees of Akiva Leffert. No agency, partnership, joint venture, or employee-employer relationship is intended or created by this Agreement. Neither party is authorized to act as agent or bind the other party except as expressly stated in this Agreement. Artist and the Images or any other deliverables prepared by Artist shall not be deemed a work for hire as defined under Copyright Law. All rights granted to Akiva Leffert are contractual in nature and are expressly defined by this Agreement.
Indemnification: Artist will indemnify and defend Akiva Leffert against all claims, liability, damages, costs, and expenses, including reasonable legal fees and expenses, arising out of the use of the Images or materials furnished by the Artist, including by not limited to any claims for infringement of copyright, trademark, or patent rights.