The biggest downside for me was the messy audio. At the beginning in the tutorial, when you move your mouse ,you can hear very weird sounds! (of the hovering mouse over objects)
Also, the battle music ends before it gets intense, it starts building up, and then it's dead again. It should be intense from the beginning!!
And the battle sounds, I respect that you've covered all animals! But the sounds are sometimes very weird and unsatisfying, but definitely kinda funny.
HOWEVER!! The ART is beautiful, the gameplay is VERY fun, and the vibe is great! It remind me of Botanicula (a scene where you construct animals from different animal parts, and you have to create the correct combination)
Not many ingredients utilised here, but sacrifice and reincarnation are done very well in my opinion, so I'll give props for that.
Very well done overall!!