Hi,
I've played your game, and I think the idea is really cool. Swapping between the mask powers is a really nice mechanic.
The only thing that bothered me a little was that sometimes I just wanted to use the same powers again, but every time I entered a new room, I had to reselect them.
Also, the movement feels really fast sometimes. I'm not new to games like this, but it would be nice to have a small window to react during fast jumps. For example, when jumping from one wall to another with the rose, the character automatically rotates, which makes it harder if I'm trying to control the movement myself. Also, when I reach another wall, it feels like I immediately start falling, while the attack itself takes a small amount of time to execute. This sometimes causes me to miss the jump.
Maybe you could add a small apex/fall window where the player has a little more time to react and perform the correct jump again. I think that could make the movement feel more responsive without making it too easy.
I'll play the game some more and give you more feedback later if I find anything else interesting.
Overall, it's a really fun game!
I also have a game that I'd love to get some feedback on, if you're interested in helping me out too. The name is Dungeon Chess, and you can find it here.