As part of your reward, toi can download Pottermore artwork of your Gryffindor common room as fonds d’écran and screensavers for your electronic devices in the following links.
fond d’écran
Pottermore
house cup
winner
gryffindor
common room
This Harry Potter fond d’écran might contain
salon, salle de retrait, salle de dessin, salon, séjour, chambre à l'avant, salle, and salle de devant.