Colour is fun but I don't feel yellow brown will be an inviting foil to the cream. Wood in that tone would be fine. How do you want to feel in your room? Fresh light airy? The. Go white. Cool edgy look - then add colour but be brave. Tomato red or Sea Blue or Coral.

Pictures attached for 3 bathrooms, first 2 are from same bath

My first question will be: what is the utilities of this room? Who live in it? Age, gender? Is this room oriented by the North or South? East or West? What do you want to feel in this room? Serenety? Concentration? Spirituality? Energy? After all this answer it will be easier to help you. :)

When dimensioning a classroom or teaching space, the best rule of thumb to produce both good sightlines and efficient layout is as follows: the space needs to be slightly rectangular, but NOT long and narrow. If X = 1, then Y should = 1.2 ideally, and no more than 1.5. Consider a comfortable space of 12 sqft. per student so if you have 6 students in a classroom then 72 sqft. + teaching space and walking space (60 sqft. or more) so say roughly you need 130 - 140 sqft. of space per class.