I like the stage, it reminds me of the Hyrule Castle stage from the first SSB.
The music's great, simply great.
The stage looks good, it's just... well, I don't know if this has been discussed, but it would be nice to see Akuma or Gouken somewhere in the background, probably appear for a moment and disappear. Then again, that might just take away from the atmosphere, I'm not sure, I'm an indecisive person sometimes.