My first thought was, yes - Edulis Superba. Then when Alex suggested Mons. Jules, I pulled up my own photos of the two. I had never realized before how similar they are!
Edulis Superba
Mons. Jules Elie
Is your peony fragrant? Mons. Jules is VERY fragrant; I have not checked E.S. for fragrance.
The difference in color of my two photos could be a difference in light or Mons. J. could have faded a little.