I don't usually like shipping, but when I do, it's because of awesome pictures like this. Anywho, I really like it because it looks really good for one but mainly because it's really sweet and to me doesn't imply anything more than spending time together.
My heart is no longer a useless lump of ice in my chest! I didn't think enough D'awww existed in the world to do it, until I saw this picture. But all joking aside, I love the picture. Your light/shading techniques and the eyes especially are good. And the cutie mark/ hairpin switch thing? I almost cried at the pure unfiltered cute.
Probably some frou-frou party in Canterlot, where Lyra meets Octavia and ruthlessly ditches Bon-Bon. And then Lyra gets Octavia pregnant. And then Bon-Bon, driven mad by her loss, seeks out Octavia and her baby. She then strangles them, and then skins them, and writes on the wall in their blood, "I've missed you Lyra. Please come home." Lyra comes home, and discovers the scene and the massage. She's all "Oh my god, that is so fucking hardcore!" and then marries Bon-Bon, and then they live happily ever after. The end.