The example of an Utamaro pornographic print below shows Utamaro's typical attention to graceful detail (as seen in the woman's flowing hair and the reflection of the woman's toes, clenched in sexual anticipation), while conforming to certain grosser conventions of ukiyo-e pornography, such as the samurai's oversize penis.  Contrast the rather mechanical result with the more powerful eroticism of the non-pornographic portrait of a low-class prostitute below.