Yuri girls are always great, but honestly, if you want more volumes you needed to add a bit more drama and personality into them, aside from them liking each other, it goes a long way.
If you dont want to do ecchi yuri or toxic yuri, there are still some options left, but its more difficult. The art was nice enough at least, I hope this author continues to draw yuri.
Anyway, I checked their twitter and they write that continuation depends on sales of this first volume as recently as 1 hour ago, so I wouldn't call this chapter last just yet.