It seems the WC would be better on the top wall with the vanity. If you have a walk-in shower, it doesn't need to be quite so wide, and you can move the entrance to the bottom to be more generous. If you have a tub/shower combo, you don't need the partition at all. Consider flipping the door swing unless you're really concerned with privacy.

The overall furniture layout looks fine as you only have 2 options for the bed.

Try saving the plans as jpeg files.

The usual approach would be to put the shower enclosure at the end with the window -- you could make it 48" by 40" so that it would feel spacious. Then the toilet goes on one of the long walls, facing forward. There's really no other choice, since you need something like 30" around a toilet, so it can't go next to the shower anywhere. Since you seem to have some kind of vestibule taking part of your 9 feet, you'll probably just be able to make all of this fit.