Yes, I know the Papillons of Schumann, having learnt that as a student. The Rosenthal Papillons is a short piece, lasting around 2-3 minutes, and more suitable as an encore piece, while Schumann's is more of a main item on a recital program. I have the fantasy on 3 Strauss waltzes by Rosenthal too, but I didn't know he wrote a fantasy on Faust.
Regards,
Gregory