Hope i'm not too late, but this sounds amazing.
You should try making a version from Castlevania Legends. It's somewhat similar to the original, but it's just as cool.
3 days spent on this and it was WELL worth your time.
Holy hell dude... that is like BY FAR the best Castlevania II remix i've ever heard O_O
Please contact me if you would like to use this in a project. We can discuss the details.