Gwyn (artist and level designer) here!
omg thanks so much, im so glad people have found all of the references we put in! congratulations on all of the feathers and 100% ing it! now the real challenge is beating our any% glitchless time of 3 minutes and 1 second ;) no pressure tho. I'm very glad you found there to be way too many among us, that was the goal :>
OH also we are making a huge update currenty hopefully ready in may with like twice the content and some new mechanics, so stay tuned!!