sentences:  Series of figures of different castes or trades were particular favourites, with an emphasis on differences in costume; now they are equally popular as subjects for analysis by historians of the imperialist mentality.Portfolios of animal or botanical subjects were also commissioned, and some erotic subjects.Architectural subjects were popular, usually done in a detailed and frontal style more like that of an architectural draftsman than the Romanticised style used by most European painters visiting India.