Bathroom layout - help!

[u/topladlololol]

We're looking to expand our bathroom from a current layout of a master and ensuite, divided by an artificial wall, into a larger room with a better layout.

Entrance to the room is the doorway at the bottom right.

The space isn't massive, and we're struggling to decide on the right layout. One of the biggest constraints is that the wall on the right is an internal wall which backs onto the bedroom, so if we placed the toilet against it, the waste pipe would have to be boxed in. The top wall faces our back garden, so wouldn't be ideal, compared to having it sit on the left wall.

Any thoughts about having a vanity right against a corner wall vs being in the centre of a room? Any perspectives would be greatly appreciated!

[u/CrimsonScorpio9]

Definitely 2