Nah it is good. Keep the levels linear and keep it so that in that part if you choose the wrong path the screen gets darker and if you keep going you have to start the game all over again.
Can you make a downrooms version with sublevels 0-35? (go to https://backrooms.fandom.com/wiki/Level_REDACTED#Images_of_Death_itself to get the photos to base the game off of)
The photos go like this (left to right, top to bottom)
0 1 2
3 4 5
6 7 8
9 10 11
12 13 14
15 16 17
18 19 20
21 22 23
24 25 26
27 28 29
30 31 32
33 34 35