Put both plans on top of each other so you can see where the spots will be located in the new plan. Could the shower wall possibly be moved downwards according to the plan until the spot above the original toilet is covered by it? So if you build the wall up to the ceiling?
Then you could, for example, make a suspended ceiling just for the two spots that were supposed to illuminate the old washbasin—possibly a starry sky or, if it fits with you, hang it with a rustic oak board and then reposition the spots there as you like. The board should be as long as the shower wall. Or add some art to the shower and place spots on the painting from the suspended part.
Then, in my opinion, you would only need to add one spot above the new washbasin location. If the spot above the toilet is not perfectly positioned, I would ignore it—it’s hardly noticeable.