It looks to me like your trim is white and your walls tan, and possibly your cabinet above the toilet is tan. I like that color combination. I would hang your pictures one above the other and lower so that you can see them while seated, but otherwise I like your bathroom, tho I would certainly put the toilet seat down before taking more photos.

However, I understand that sometimes we need a change of color. What did you have in mind? What colors do you have in the rest of the house?