I've had this idea for this picture for some time but drew it only now.

When Ruby isn't working in the Shell Shoppe or hanging out in the city, she swims in the ocean and sometimes will take little sea creatures to wherever they need to go. This hermit crab was one of those creatures, and it looks like he's striking up a good conversation. :>

And yes, Ruby doesn't have hair here! The reason is because she wears a wig and takes it off when swimming to not ruin it. Other than that, she always has it on.