Gukan here is the map of Bosnia with the rivers. These are more accurate than the previous ones.
The second map is just with the three rivers Bosna, Neretva and Vrbas. The provinces that i circled need change. The bottom circle where Croatia is, Neretva should start like that and not like on the previous map. You can see the Croatian Map how i divided Ploce and Metkovic on one side and Opuzen on the other. That's how Neretva starts and the next circle where it enters Bosnia in Capljina province it should go upwards between Capljina and Pocitelj provinces. Now you can see below Pocitelj province that there is still area left from Capljina province. Is it possible to leave the river going through Capljina province and not divide in two or should we add a third province between Capljina and Pocitelj.
As for the third circle in the middle Bosnia near Visoko and Sarajevo, where Catici province are it should through that province but it will became the same story with Capljina province, should we add a third province or just divide the province and leave the same name.
And the fourth circle where i circled in the north in the Maglaj province is it possible to leave it like that or should we split them in half having river between them. I hope you understand me what i'm asking you about...
As for the Albania map it should go like i told you, the south river needs to go between Gjirokaster on the south and Polican on the north, because the town Gjirokaster is on the that river. As for the northern river where you have dividing Albania and Macedonia, that river should start like i have drawn...