lol funnily enough I never did either, but when I thought Zelda Valentines that scene was the first to come to mind. Thankies anyways :>
So anyways, my comments.
Smitie: That is such a super sweet moment in the games and you captured the emotions really well, even with just lineart. I also love how you drew the TP styled heart containers, complex crystal shape and all. Something I wanna point out though, Yeto seems to have 4 fingers on the left hand and 5 on the right.
Defno: Maybe it's just the ZD vday card page banner or something but I can really see Tingle as a representative of Valentines day XD I also love the textured look and that font you chose for the text is really cute. However, the pose and face are a tad boring, but I really like the coloring.
Meego: That scene is just adorable, and the message at the bottom is super cute too. I can definitely tell you put a lot of effort into it. I think if you tried using some color it would help bring out the cuteness more, especially if you added blush or something. It would also help extend the dark sky and make it more continuous since right now the night sky seems a tad cut off, but great job nonetheless.
I think I'm gonna give my vote to Smitie. The scene she chose to depict is just too cute~