Love the art on this game, it's super pretty! And the victory screen is so cute!
I would suggest maybe moving the feather count to the bottom of the screen, maybe under the play zone - so that the player can always keep an eye on it a little better than just having it in the peripherals (and you have another third of the top of the screen to use for more art!) Also some sort of feedback when you're hit - maybe shake the box a little bit, or make the player sprite flash a different color or SFX, I know I got hit like 3 times and couldn't tell until I checked my feather count. Lastly some more obstacle types would be great - I think you all did a good job utilizing the repeating cross sections to make up for that, but I think we could beef it up with some other projectiles from the sides of the box or something along those lines (I'm not a big bullet hell guy so I'm just spit balling)
But otherwise this was fun, great work from the team, and thanks for submitting!