While that is true the chair's colors stick out a bit, they would look better if you where to use a dark red.
It's supposed to be wooden for acoustics. Do research before criticizing.
Fun Fact! An older version of this build was used in Blockies 2012, and the brickcount was ~75,000, including Young's stage and some extra features such as tables and chairs.
Fun fact! That was the old version!