Blackthorn Bonsai | Rood Cuttings | Clump Style | Pruning

I take another look at the Blackthorn Root Cutting that I'm growing and give them a little prune. I also show you the original plants where the root cuttings came from. I had these growing in the ground.
I dug them up and considered binding them together to make a clump-style bonsai, or just one tree with an artificially thicker trunk.
I also ask you the question what would you do with these plants. Would you bind them together or plant them out individually?
Thanks for watching.
Bill