I think without doing much of anything, you can leave them as is but like I said the hawa and andro can be together with the campfire but the campfire, to get the red coloring needs to be out and in more lite eventually. The #4 Aeonium will be tall as the head gets bigger and if you lop off the head at a good stem height, you can get multi-heads and replant the head after callousing.
In the future you can consider getting smaller or squatier succulents to go with the tall/large specimens you have now. Remember to think of similar plant requirements as you decide what can go together. I always strive to put plants with same requirements in one pot and as you get more experience (and more plants) you will get more of that knowledge of what each plant needs.
