Ok, so first off, amazing job. for such a short window you did amazingly well. I do like the idea you had, it plays well and the ending did get me lol, I will give you that.
Positives:
1. The visuals work they fit the overall theme and feel cohesive mostly.
2. The pacing is good for the total length.
3. The ending truly caught me off guard and caused me to panic lol so good job.
4. You obviously know Ren'py you used scene transitions and small animations well.
Negatives:
1. The sound, I am unsure if it is intentional but the unsettling soundtrack near the beginning feels... wrong? Not in a feeling sense but in a sounds blown out in some spots, unsure if it is intentional or not.
2. It is really short. I understand the time frame you finished this under, it just felt a bit rushed is all.(Still an amazing job truly)
3. So the main menu, it feels... Sorry but bad, it may be intentional (And if it is kindly tell me to kick rocks) but the white over the buttons is a tad jarring.
Overall though you should truly be proud. You did an amazing job. 4 days and between school and real life? Truly an accomplishment to be proud of. You have potential and I hope you continue pursuing this if you enjoy it. The 3D scenes are awesome, but file size management could use some work lol specifically the audio, that folder is CHONKY! Again truly you did a great job, HAPPY HALLOWEEN!