Just want to say that I'm really excited and it's really important not to rush it and just create the best you can!
I also have a question, is the entire game going to be 4-7 hours? Like getting every ending?
That estimate is for the entire game, but the word count used for it is a bit outdated.
It's now 5-8 hours with voice acting turned off, and we're still missing the Backer ending (they haven't sent us their info yet, so it's looking like it'll have to be added in a future update). If you're playing with the voice acting turned on, it's probably closer to 6-10 hours total.