There's the core here of a really serviceable stealth game, and I like the goal of rescuing animals. I liked the readable graphics, and especially the walk animation of the main character, very sneaky. The vision cones are very fair as well, and I had no bugs or issues with them (which you should be really proud of, that stuff can get really janky if you don't do it right!).
My main criticism would be that the walk cycle feels very slow with the size of some parts of the levels, I'm just kind of sitting there holding a key down at certain points, rather than thinking about being stealthy. I think this would be something that would be very easy for you to tune with a bit of play testing - I know how hard it is to make really tight levels during a jam, so not a huge problem!
Well done - thanks a lot for sharing!