Here's a larger versionAll painted sources byWilliam BouguereauMain painting "Dante et Virgile au Enfers"Other paintings"Nymphes et Satyre" , "Le Repos" , "Les Oreades"Dragon sourcesA WIP awaits you in the comments.
Thank you to EquestrianStock for the fantastic alien pic. The original painting is Flagellation de Notre Seigneur Jesus Christ. Sources