Wow, beautifully crafted experience! It felt like a children's book was unfolding in front of me, you really nailed that kind of feeling.
Although I did like the analog movement, I had some trouble making it progress smoothly from frame to frame. I think having the ability to move across the story at your own pace is a nice touch, but maybe it will work better with some kind of slide-based presentation where the ambiguity between scenes is less obvious.
Also, I dont know if this is just me, but I never quite got if clicking on the bird was needed in order to load each new image, I think maybe I got confused by the first image with the controls (the one that says "Click!" pointing to the bird). Some extra visual feedback might fix this issue, but I'm sure you're aware of this already.
Anyway, nitpicking apart, I think you did an amazing job here, the story was charming, the artstyle was beautiful and fitting, and the presentation was experimental in a way only jam games can be sometimes. Really good entry!