I got all 4 endings (unless you were trolling with the "/4" stuff and there are hidden endings), and admittedly there were certain points in the plot that I didn't quite grasp.
---- SPOILERS obviously ----
The biggest question is what happened to Charlie's mom. From what I've been shown (shadowy hands reaching for Charlie when asked about her, her ghost ?? appearing and told Charlie to steal money, how the dad did not want to clean up another corpse, how he said that Charlie ended up "like him" in ending 4/4), if I had to make a guess, did the dad (player character) kill his wife for some reason? It's a dark train of thought but it just really seems that way. Does that also mean they are haunted by the mom lol? Otherwise I don't get why there's a female ghost hanging around.
Ending 4/4 was kinda confusing because I couldn't open the door (is that option always meant to be locked?), hence it wasn't clear what exactly happened inside the house. Did Charlie kill someone? Did he just kill some random person?
Anyhow, the game was short but decent. I love the shades of colors you gave Charlie's room, they all highlight the differences in various phases of his life. The colors really helped set the mood. Plus, using the door as the entry point to each scene was nicely done too, story-wise it acts as a barrier between the parent and the child, gameplay-wise it adds an element of uncertainty because we can't see what's beyond that door until we open it. I also appreciate how the game depicts the hardship of juggling between making a living and caring for your child, and different ways of up-bringing can change a person. Ofc, I won't pretend like this is some masterpiece of literature, but it was good for what it was.
If there are any improvements I wish for, it's probably that there can be a way to restart the game without reloading the whole page - my internet speed can be unbearable (maybe that'd be possible in the downloadable Steam version), and there was a scene where Charlie showed dad a picture from his art class, it was a bit jarring since the whole game was in hand-drawn/painting style but that picture alone was very realistic lol. Having parts of the face poked out was creepy but the different style broke immersion a bit. Lastly, text speed, I know the text can be skipped immediately by clicking, but there were little changes in dialogues depending on the player's choices, so I still needed to wait for the text to appear anyway to avoid accidentally skipping unread stuff - it became kind of agonizing after some time.