For little bathroom remodel designs you can select tiles in neutral colors. This will make the space appearance better and larger than it is. Likewise accent with a poster or a little indoor plant that will breathe life including color.
9 Ways to Make a Half Bath Feel Whole - Maggiescarf
Turned our half bath into 3/4 bath by putting shower in where sink was and sink vanity under stairs
love how this bathroom works with the slope of the roof