Those in Hufflepuff typically score higher in agreeableness and conscientiousness, reflecting the house values of loyalty and hard work.
While Gryffindors were expected to score high in bravery-related metrics, studies found they were primarily characterized by higher levels of extraversion . 1280x719 Harry Potter Houses Wallpapers - Top F...
An interesting paper related to your search for Harry Potter House backgrounds is by Laura Crysel et al.. Those in Hufflepuff typically score higher in agreeableness
Harry Potter and personality assessment: The utility of ... - PMC 1280x719 Harry Potter Houses Wallpapers - Top F...