Bip39 Brute Storing entropy (which include trying to keep a deck of playing cards in a certain shuffled order) is unreliable when compared with storing a mnemonic. Instead of storing entropy, retail store the mnemonic generated from the entropy. Steganography could be beneficial when storing the mnemonic. Never consider pictures: https://wise-social.com/story4006209/bip39-word-list-generator-the-basic-principles-of-seed-phrase-generator