Give the location, surface type and what has changed in its condition. Paint lifting, a softened panel and visible growth are different observations. Include photographs of the complete position and a detail without scraping or removing material. Say which repairs or treatments happened previously and what remained afterwards, rather than treating every changed finish as removable dirt.
For separate room work, ordinary deep cleaning information concerns household tasks. It should not be treated as a substitute for assessing mould, damaged material or the moisture behind it.