There's a lot of really cool stuff going on here! The art is gorgeous, the music is awesome (even if the volume is a little weird sometimes) and the puzzles are tricky. I haven't yet gotten my head around the wall portal mechanic and often overlook it when trying to solve anything which makes it a really interesting piece every time. I do see some flaws in it though. The combat is a little underwhelming on both m/kb and gamepad, the player collision/hitbox seems a little big making the character get caught on walls pretty often , and there seemed to be some inconsistencies with the games rules from room to room. I go into more detail in the video, I hope you don't find my criticisms to be too much and hopefully a bit useful as well. Great work so far!