My kids can't read yet, so I only have Yoto cards that look different from each other; I don't have the time/patience to print out special labels, although it seems very fun.
It would be great if more of the MYO packs had distinct designs. The spring and summer packs are great, but I'm sticking with one set because I don't want duplicate animals and it lowkey bothers me if the content doesn't match the vibe of the art on the card. My favorite is just a colorful patterned one that came with the Yoto starter kit; I would love to just see different kinds of colored patterns that are easy to describe to small children and distracted adults.