Bonsai needs a trim..?

[Skrabbitskrabbit]

I have this (terrestrial) bonsai tree. I have no prior experience whatsoever with bonsai but back in February my husband accidentally left the plant outside during a cold night so I have brought this guy back from having only 2 leaves. I credit our summer humidity and leaving it outside in warm weather and misting daily with aquarium water (and love).
Now I feel like it needs a trim which I’ve been reluctant to do. What do you think? It’s very lopsided which I kinda like but would love to make it look slightly more tame.