This is a pretty nice stage. nice feeling. I wonder where the image comes from.

It might be personal preference but the deltas are a little bit too strong maybe.

i see small lights appearing and shining.
I suppose it's the reflection if the light on the ice that makes it shines like a diamond.
but there is one spot shining on the right of the stage, and it's "inside the window" where there is no ice. so I dunno.

That's the only tiny thing i guess. for the rest, looks all good to me.

Yea when i was making that sparkle or shine animation i just put them everywhere on the image and wasn't thinking about the open door ways. That spot shining on the right i wanted to move the sprite images over so it wouldn't be seen in the window but since i have other spots shining on those same sprite images it would have messed up the animation.

Edit : I found the source of the image so if you want to check it out the link is up top.