Canaan x Alphard >>>>> Canaan x Maria
Many things about this episode pleased me even as my assessment of this series is downgraded from expectations of Kara no Kyoukai epicness to B-grade TYPE MOON-inspired bubblegum entertainment:

Be careful what you wish for...

I'm still megas confused about whether Shuri is really Shuri or Yukari. Some viewers might think that it's pretty clear; I will attempt to show that it is not. Others might mark down the show due to their confusion; I think the mystery is an enjoyable one. Some may not care either way; I think it is an important development for the plot and two major supporting characters.
Some of my tl;dr thoughts on the twins identity conundrum as I watched (and rewatched) Episodes 6 and 7: