One of the most widespread folklores about the moon is the moon rabbit. You might have head of it, although it’s more eastern whereas the west has the man on the moon.
I wanted to give the character Kanina, the one leaving above, an other worldly look. She could pass as another dog, maybe, but it should be also apparent that she’s not from earth. The little antennas on her head are based on the same feathery antennae of luna moths, and that if she’s seen at a distance, at a glance, she could be mistaken for a rabbit.