Deepward - Artwork for sea creatures on cards

I'm developing a board/card game where players are divers travelling deeper into the abyss trying to discover the most unusual sea life. I'm looking for someone to design 100 different species from creatures to plants to be put on playing cards, along with other basic/minor designs for different game pieces/cards.

I'm looking for a design to carry throughout my future games I intend on developing. Payment after completion of work or sales/profit based can be negotiated.