I thought this episode was really strong and the Bedelia/Will stuff was important to sorta tie-up Bedelia's storyline in the show as well as to tell Will something new about himself that was beyond Hannibal. Will isn't like Hannibal, but his opposite.
That being said, the best parts were clearly between Francis and Reba. The score during the tiger scene was fantastic. It was simultaneously horrifying yet mystical, and the way Armitage reacted when sher reached for the tiger's mouth...scary. Now that I think about it, there was quite a bit of hands and mouths this episode.
I think this sex scene was the best of the series. But really only because of the Red Dragon tattoo. I think it was cool how the Red Dragon looked like it was consuming Reba, and while see Reba literally become the woman clothed in sun was a bit on the nose, I think all the Dolarhyde moments do a great job of showing, rather than telling. I think with a character as visceral as the Tooth Fairy, Fuller and co. have a fun time of coming up with ways to show rather than tell.