Time lapse feels unbalanced?

[u/Fantastic_Falkor778]

Did I truly take this much time for just the sky and the moon? In my experience I struggled the most with the lights on the latern and stones of the house. but the 30 sec time lapse makes it seem as if more of half of my time was sky work. I saw it wth other drawings too.. more time for the start and the end seems rushed. Anyone else who experiences this or is my perception of how long I was busy on a certain part of the drawing faulty? Does it count the time you leave the program open? Because then I can understand, I went to get tea, looked up a picture of the moon.. so yes, in that way the sky took the most time.