Love the idea you came as a theme and the aesthetics are great. I think its very unique and unexpected which is awesome. Loved the "Defense" sound, it was super cute. The art was also nicely done, creating a nice cozy atmosphere. As for gameplay, unfortunately I didn't enjoy it much :( The game felt slow, movement strange and some predators insta killed me without even option to do something. I was questioning defense mechanic at this point. Not sure how well faster pace would be in this type of game but maybe you can think about other ideas how to change something which would be both challenging and clear to the player (Might be just skill issue). I also couldn't figure out what to do with XP and how to upgrade (if even possible).
Regarding the pixel art I wouldn't be able to tell it was your first time making pixel art if you wouldn't mention it. Sure there is place for growth but I mean, it is done so well that its hard to tell you never done it before. I guess its a good sign for future improvements and that it will become even better.
P.S. Maybe its a good idea to allow fullscreen on itch page so we can turn the game full screen?