She's surprised since that's the longest train she's ever seen.

"....Is that Yukari-sama on top of that train?"

"Yukari-sama, please stop looping the same train indefinitely at the same spot. They have a schedule to follow you know."

But seriously, this is rather well made indeed...just needed some more flutter on her shirt to be near perfect.

it's so well made.
If I don't know Touhou, my first quest will be the usual "what anime is this?".