I think this pretty box card is good for either. As for me, this year I am giving it as an anniversary card. I think it will be appreciated as it expresses our genuine love for the couple!
I do so like the effect of the layers in these box cards. Using a selection of coordinating papers from the Reflections "Sugar Plum" Collection adds to fun of visual exploration of the card.
The Box Card is from the "Hearts Aflame" SVG Cuts set (affiliate links)
Mary has a brand new "Spring Time" box set in the store, which is free with purchase until Feb 22, 2016. That box of pansies is calling my name....ugh for the horrible exchange rate at the moment. Grrrrr