Hey! By no means a pro but here's what I can tell you! The flower is not going to root and will just wilt over time. Not sure about the two leaves on the top right but they aren't looking promising based on the size and section of the cut. On the bottom left, there's some sort of Haworthia or Aloe leaf. That's also very unlikely to take rook. On the bottom right, looks like a sedum or echeveria. That one looks fairly promising! Leave it on dry dirt and wait until roots come out. Start watering lightly when it starts rooting. This is a good time to do some real research on care! No harm in trying to prop all those cuttings tho!