Did the best I could... might need some accuracy checks. And I'm afraid I don't know the others purely from memory.
Piggyback ride (?)Holding handsArm hugPrincess carryEmbrace from behind~Flirting 10 Image-response~
an image-response is a sort of art meme on pixiv, where one starts with an image and a set of guidelines, and then gives other artists a chance to draw whatever fits the criteria.Lacing fingersEmbrace (?)Buried in chest (?)ClingingForehead to forehead (?)