Nice game! It's a very interesting concept and I could see this being a fun automation game with expanded and more in-depth tutorial. At this stage it's sort of like I just put random things in and click play and don't really have a plan haha.
For me the music is a bit too loud. I'm also not sure why you can only put in one big animal (maybe it's a realism thing?). Additionally being able to remove things after you select them would be an important UX feature.