Wow this was awesome! Great use of Seraphina's power during gameplay, loved the scale of this project. Was really fun exploring and seeing what's behind each door. Loved the design of Sera's maids and your different takes on the characters; when I first saw Solveig there was a split second of terror then recognition, great work!
EDIT: Also loved that ending, I lol'd hard at The Champ's bit just before that too
Had one bug, when coming out of the door from the underground elevator it would clip me back down to the lower level. I got past it by jumping out of the elevator, but I did have both the underground and mansion music playing at the same time (actually was a nice mix lol).