You can do something like this this is one way of doing this. It can be done in a few ways you have room to work with.

Here's my thought. You can never have too much storage space. Move the door in the sink room to the right, perhaps lengthen the vanity, and put the closet next to the vanity with the door opening against it.

Then have the closet in the other room open into the hallway. if the door into the toilet/bath room were moved towards the tub, this closet could be a little deeper.

Are all three of these bedrooms occupied most of the time? I am assuming they all share this bath? If so, I'd suggest the toilet have it's own vestibule, could do with a pocket door, or schematic suggested above. This will make sharing/multi-use more convenient. As it is now, seems like a lot of dead space.

Going off of GN Builder's sketch, you could partition a privacy wall for the shower if needed. There is lots more room to play here.

Here a couple of other quick ideas depending on whether you want more storage or counter tops.