@benkroft welcome to the best team 😉
You can model the bushes however you want!
Personally, I would not use the Sapling Addon for this, as you can only see leaves. (I’ve tried making bushes with the Sapling generator in the past and that was a very painful experience for me.), but you can use any method you like.
Experiment a bit. Maybe even try sculpting and make the leaves with Shading…
I had a quick go at it using GN and got this (no leaves, just ovals):

Just try some things out, but don’t spend days, figuring out what the best way is for you 😉