This video will help you to see how the pouch is made. I added batting and made the velcro strip shorter. I also used different dimensions so please follow my instructions.
below are dimensions for a large version of Cosmetic Pouch with Velcro Closure which could be used as a pencil case or as storage for large toiletries or portable cutlery /cloth napkins. It's easy to make and I used canvas for the lining so there is no quilting.