Complex sentence: The floor and wall example can be expanded the color, texture, shine, polish, etc., are the miryokuteki aspects which definitely comprise a very important part of the quality and add value to the product.
Split into simpler sentences: The floor and wall example can be expanded to include the color, texture, shine, polish, etc., which are the "miryokuteki" aspects. Such aspects comprise a very important part of the quality, and add value to the product.