The poses are gorgeous. Except in the Anna one, she looks so playful-- in the last full body shot she doesn't even seem to be holding her wand-- and I've always seen her as more serious and reserved.

I'm not good at picturing action on the page in my head, I'm not even good at figuring out exactly what's happening when there's action happening on a screen, so like the commenter above, I mostly care about whether an action scene furthers the narrative.

In terms of knowing the exact right spell, or the appropriate canon equivalent: it almost always feels too neat/clever to me, because as a reader you know it's a story, and that the author made sure the character would have just the right tool/information. I'm also not a big fan of mystery novels.... But having things still not turn out too neatly, having there be negative consequences in spite of knowing the right spell, makes it *feel* realistic. Even if the spell was in fact never mentioned previously at all, because I'm bad at remembering details and if you sell me on it I'm not going to bother to check if it actually appeared in chapter 4.

And in fraught situations I'd totally buy the Devil's Snare excuse. I forget relevant info all the time, even when I'm not stressed.