Ok, here’s my ideas.. anyone else with other ideas, please chime in.
Looks like you have an idea where you are going with the design, major movement right, smaller left creating a rough acute? triangle. Now I’d develop some height and separation between branches and continue the over all lopsided triangle shape … when viewed from the front.
Later on… Basically one continues to grow the primary and secondary structure with a decreasing undulating movement as each branch lengthens, encouraging branching off of the outside of the branch bends to eventually create a general leaf shape for each branching. Pull off any growth going up, down or inside bends and on the trunk
As each branch gets to your desired design length and style… and some will take longer then others, stop the tip growth. As each tertiary branch lengthens to desired length, stop the tip growth. The stopping action will force the growth backwards, increasing back budding. That’s how the branch will begin to fill out, producing more 3rd and 4th level etc growth.
Later…. next summer or maybe next later, because the growth will accelerate from here on out, you will reach your final dimensions. Then the type of pruning will become a bit more technical. Yet by then I figure you will have gained sufficient vision in your design that it will be just a matter of learning after flowering technique.
There’s some really great folks with threads here like
@Brian Van Fleet, to name only one to get you started, that have some awesome photos coupled with information you might considering persuing In the interim.
Hope this helps.
cheers
DSD sends