Zhè wèi huàjiā bócǎi bǎijiā zhī cháng, xíngchéng le zìjǐ de fēnggé.
This painter drew on the strengths of many schools and formed a style of his own.
Tips
history
百 'hundred' just means 'many'. Confucians, Daoists, Mohists, Legalists and others argued openly in the Warring States period, remembered as 百家争鸣 'a hundred schools contend'; together they are the 诸子百家.
mistakes
百家姓 is a separate word: the Song-dynasty primer 'Hundred Family Surnames', a rhymed list of surnames children learned by heart.