The Aeonium (dark leaved succulent) does well indoors for winter. Just have to watch for mealy bug.
I'm not sure what the blue/green leafed succulent is, but it would do well indoors for winter as well.
I have kept them under my deck roof for winter in zone 8 and they did very well, but your zone 6 is to cold for that.
The other low growing bright green plant looks like a sedum, can't tell from this photo. If it is, it will do well outdoors with good drainage, over the winter.
Awesome plants.
