The one with the bigger trunk is just a common 'yard' Juniper used by most landscapers in North America. The other is some variety of Spruce, these are mostly propagated by woody cuttings. The growth habit of these will vary a lot depending on where the cutting was taken from.

While the Juniper will make a good Bonsai, the Spruce may not. Most common varities of Spruce don't like either root restriction or heavy pruning, they are also very slow growers once potted. If it's in the Ezo family you may get lucky. All you need is a well draining pot and soil mix to keep them growing and happy.

Bob

Thanks Bob. That is what I had thought they were, but wanted to check with someone more knowledgeable. The one that I am having allot¬¬¬¬ of trouble with is the green leafed deciduous one. I can't seem to determine what this one is.
Any and all help would be great. Thanks again