Thank you, Cerise, for the upload! Really great performances overall.
Hikari Furu: The girls did a great job, especially Hikaru and Wakana. I thought Keiko could've sung her first line and the bridge a bit more powerfully, but it's probably a sound issue (and it's a nitpick anyway). In fact, I think this song needs a giant auditorium setting with a good recording to showcase its epicness. Hopefully the Live DVD/bluray will offer that, 'cause a studio live at Niconico isn't really the proper place for a song like Hikari Furu.
Misterioso: The girls hit all their notes well. I don't really care for Wakana's tone during this song though. Again, nit-picking, and possibly a sound issue since studio lives and raw recordings tend to make their voices seem a bit dry (it seems to affect Wakana and Keiko's more "ringing" voices compared to Hikaru's). Still a good performance, but I prefer the studio recording.
Kimi no Gin no Niwa: Saving the PV for when my CD arrives. But I couldn't not watch the live! It's a better (sounding) performance than Misterioso, perhaps a combination of Hikaru having more lines and the more folksy style being less affected by the recording. It's the one that's now stuck in my head and probably will be for the rest of the night, so... mission accomplished?
EDIT: Oh, and nice outfits from the girls. I guess Wakana totally can rock a white outfit + black rights combo, as long as it's not the one from FJ's Hong Kong live. It's a huge improvement from back when they performed TTB and Manten on Niconico.