It looks so cool! Now people will be asking you where you got such an amazing backpack and you can proudly tell them that you did it yourself! You should be very very proud of you! You've done a great job!
It's also good to hear that you took your time to make sure that you understand everything and that you also wasn't afraid to correct mistakes. This can be very demotivating if you do something based on a youtube video. It all looks so easy, shiny and perfect but when you try it you struggle like hell and then you wonder how come that it doesn't work for you.
It's nice that you tried not to copy that Swedish brand. It is important to be original. I'm glad to hear that it motivated you and that you're ready to sew more!
Cheers to sewing! :) Have a good day!
RE: I made this backpack 100% from scratch!