Love the artwork, especially the character design! It reminds me of the promotional images from Wonder Egg Priority, and I wonder if it served as an inspiration for this. The game has got a very warm and vibrant atmosphere, almost feeling like the juncture of spring and early summer, very vivid and full of colours. Love the music too, really sets the mood and atmosphere.
The idea for the game is really innovative and unique as well, Iāve never seen something like this before. Controlling the shadows by moving one character and then letting the other character use those as platforms is a really cool concept. I feel like the execution would need a bit of polish and bugfixing though, since it was a bit difficult to control the characters and prevent them from getting stuck on objects or shadows.
I also got stuck at this point since I could not move the girl any further down, so the shadow of the stairs couldnāt get low enough for the shadow girl to jump on top of it. Maybe I am missing something here.

Overall a very fun and unique concept going on here. I wish you all the very best!