I have one question: where do I get the images from?

Hi Plastimini,
 
That woud be great if you could complete the DEX !
 
You can get the images from the official Pokémon Trade Card Database (the list of images are at the bottom of the page) :
https://www.pokemon.com/us/pokemon-tcg/pokemon-cards/?cardName=&cardText=&evolvesFrom=&format=unlimited&1-swsh=on&hitPointsMin=0&hitPointsMax=340&retreatCostMin=0&retreatCostMax=5&totalAttackCostMin=0&totalAttackCostMax=5&particularArtist=&advancedSubmit=

Since Sword and Shield is already listed in French, what you could do is translate these cards :
https://en.pokechange.net/dex/JCC/manage:edit&expansion=sword-and-shield


Translations can be submitted to clicking on the following button :
https://www.pokechange.net/uploads/support_22.png

Hello,
 
Thank you for your previous DEX suggestions, they are now available on the marketplace !cf : https://en.pokechange.net/dashboard/shop/offers:add
 
Please feel free to register on the DEX as a facilitator (button at the bottom right of the page) :https://en.pokechange.net/dex/JCC/manage:facilitators
 
This way, you'll be able to validate your next DEX (pending) suggestions I'll then publish them on the marketplace.
 
Best regards,