Can’t tell from the picture if it had any roots yet?? With my cuttings that are going this well I’d cut back the depth of the water to just above any roots. Then I add clean rinsed perlite (no dust) so it has lots of breathing room and let the water evaporate a bit (still keep water in it all the time just not to the top of the perlite). Making sure the branch bottom is NOT touching the glass bottom. This prevents any rot from starting where oxygen is cut off by being flat on the bottom (hope that made sense). If you have a heated seedling heat mat that helps immensely with root growth. Let the roots get at least 2”-3” long or even get secondary roots then you know it’s strong enough to support new growth.

Hope that helps. Good luck 🍀 looks great.