Here are Luna and Luca as the Duke and Duchess of the Sea Ponies! (based on an mlp emberave rp I did with Enchanting_Esmie X3)

Also I know what you're thinking- "Who's francesco?"

Well he is a new Lunuca child I made >:3 He's an ali-human sea monster hybrid with pale golden scales with luna's golden eye color, purple hair and he has luca's ear-fins X3