This plant sprouted up from a seed in my back garden 18 months ago, and I've been doing my best to train it for the past year or so. It was one of my first ever plants that I started to train. It has fought off a case of powdery mildew.
Attached will be two photos of what it looks like at the moment.
Any advice or anything as to how best to treat the tree and possible training routes/feedback would be much appreciated!

Cheers,
Saf