I found the experience of this game to be consistent and relaxing.
Menu and UI art was nice. Art for the Unknown Girl was pretty kick-ass also. Main character looked little clumsy. Maybe it's something to do with the animation. Environment art was somewhat bland. It could use more variety in values.
The dog felt too tame to be an enemy. Wolf or so equally terrifying looking creature could do better as an enemy. White as a color is usually associated with purity, so use of it as an enemy color should be restricted to thematically fitting environments like snowy areas. Dog also didn't sound angry or aggressive so there was dissonance on how it looked and sounded against how it behaved. As an opponent they didn't really pose a threat.
SFX were overall juicy, but they could use more consistency with the quality. Relaxing music was fitting for a puzzle game, but was kinda off for combat phases. This leads to identifying the core of the game. The game seems to have equal amount of puzzling and combat, so it's missing a clear focus. Either combat or puzzling should be chosen as a core and other elements should be designed to support that core.
Underlying story got me interested and writing was enjoyable. I wish there were more characters to interact with.
I solved one puzzle on lower level, but got stuck on the rest. Play time was around 30 minutes.
Hope you find this review helpful.