I'm relatively new to bonsai and extremely new to growing olives. I picked this one up a month or so ago and have been trawling this forum for ideas and progression for it. After all that i'm still a little lost as to how i should treat it and train it. Below are some images which show it from all sides and the top. It's got a great base to work from and what i understand a new strong leader which has grown from it.
If you could give me your

I'm thinking of getting it into a larger growing box to really get it going. When is a good time to do this? I've been giving it a bit of seasol when watering and havent let it have too much but the soil has always had been left to almost dry before watering again.
Cheers,
Andy