The menu and loading screen really feels like a Touhou menu. It must have taken some serious work to implement all this in Godot. Is the game going to be open source? I can see the code, but no license. I can think of at least a few people (myself included) who'd find your code useful.
Unfortunately, the game itself feels obviously unfinished, with the one boss having a copy+pasted non-spell attack that just always bend in one direction (and bullets being erased if they go off-screen effectively truncating the pattern if the boss goes to the right).
I loved the design of the ghost maid. Would love to see this finished. A 3-stage shmup is very ambitious for a game jam.