Insane quality for a first drop! Animations are awesome, character designs are enticing, gameplay loop is simple enough that it's not annoying, but involved enough to be both what you expect and enjoyable! The exhaustion mechanic is also a neat little twist! As far as things go, I'd absolutely love to see more time given to the actual vore content. Longer animations for the swallowing, possibly a proper end scene, and some dialogue during. Also a slower game over for...likely apparent reasons. But we DEFINITELY need extended time being swallowed. Goes by way too fast! Seeing these characters get some proper personality would do wonders! 

Even without any changes, staggeringly high quality release! You're even based and had the audio low by default. Truly wonderful. 

This is currently 3 stars instead of 4 because I simply cannot even see the animations with how quickly you get game-overed once grabbed. Even if I have no exhaustion, by the time I'm being swallowed, it's straight to game over. Sometimes, it's over before the animation finishes. Hope that gets changed!