A bit late here, but I gotta say it's pretty sleek but here's 3 nitpicks:
1. The Destructible Banners aren't centred. The right banner is further from the corner than the left and is on screen when fighters are at their starting positions.
2. Part of the floor next to the right banner looks like it originally had the bottom of its sprite over it.
3. I'm not so sure about the abrupt shadow on this part of the castle.
The next Street Fighter All-Stars update