Ah, I see, you removed a lot of foliage, you have work the tree pretty hard. Remember "Piccolo" is a slower growing cultivar, it needs recovery time, needs to create new growth.
For what it's worth, there really is no such thing as a "gentle repot". Even "slip potting" is more traumatic to the tree than most new to bonsai would think. If this tree were mine, I would do nothing to it for 14 to 24 months. This tree will need to recover. No pruning, no repotting, even no wiring. Nothing. I specifically mentioned months because some novice growers think if they prune in autumn of 2016, and then repot in April of 2017, they have "waited a year" when in fact it was only 5 or so months. If you are feeling impatient, buy another tree. Pick up a juniper or several more trees. The cure for impatience is more trees.
I like this tree, and what you have done, only critique is your timing for season is off. But if you get it through winter, it should be okay.