Guest bathroom planning (3.9m²) - What arrangement?

Have a nice day!
We are currently planning our house and are unsure how to arrange our small guest bathroom on the ground floor. I have sketched a first idea but am uncertain if it is the best solution.

Must have space for:
Washbasin with storage
Toilet
Shower (for guests, dog, possibly a "mudroom" for children; so not used daily!)

Since we are still in the planning phase, the window on this wall can still be moved. The door should stay there.

Do you have any tips for the arrangement?
Thank you very much.
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I would plan the door to open outwards and then like this

If the door has to open inward and you like the layout as it is, I would at least rotate the sink by 90°, otherwise you will hit the door in the back when it is not locked. The space will not be enough for an open shower.

If the door has to open inward and you like the floor plan that way, I would at least rotate the sink by 90°, otherwise you’ll get the door in your back if it’s not locked. The space won’t be enough for an open shower.

Good point, thanks. But the door can also open outward.

This is how my idea for the bathroom would look:
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Then show us the floor plans. Just with snippets of the plan, this won't work.