This is really cute and lovely and shows how much they care for each other.
It's not implied that they're a couple, and even if it was, it would still be fine, if that's what the artist wants it to be.
Wonderful work on this. I very like Twilight and the more I see Cadance, the more I like her. But did you have something in mind they would say in this situation and where they are supposed to be?
They are so freaking ADORABLE together!
Nice job dude!